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authorFrederik Rietdijk <fridh@fridh.nl>2018-07-22 11:14:41 +0200
committerFrederik Rietdijk <fridh@fridh.nl>2018-07-22 11:14:41 +0200
commit3209775495eef54ed5c61592ff302dab002f8825 (patch)
tree3a9ff53ad1b7c8ea6db32f5f081a6f64079d6b9a /pkgs/development/python-modules
parent610485faa7f8c043482c4a9c030938ed315557e5 (diff)
parent6c72782d364149c7cfea1ea69fdbc1133acc80b5 (diff)
Merge master into staging
Diffstat (limited to 'pkgs/development/python-modules')
-rw-r--r--pkgs/development/python-modules/Cython/default.nix1
-rw-r--r--pkgs/development/python-modules/GeoIP/default.nix3
-rw-r--r--pkgs/development/python-modules/JPype1/default.nix2
-rw-r--r--pkgs/development/python-modules/PyLD/default.nix2
-rw-r--r--pkgs/development/python-modules/Theano/default.nix1
-rw-r--r--pkgs/development/python-modules/acme/default.nix2
-rw-r--r--pkgs/development/python-modules/aiohttp-jinja2/default.nix2
-rw-r--r--pkgs/development/python-modules/aiohttp/cors.nix2
-rw-r--r--pkgs/development/python-modules/aiohue/default.nix2
-rw-r--r--pkgs/development/python-modules/anyjson/default.nix2
-rw-r--r--pkgs/development/python-modules/application/default.nix2
-rw-r--r--pkgs/development/python-modules/area53/default.nix2
-rw-r--r--pkgs/development/python-modules/argcomplete/default.nix2
-rw-r--r--pkgs/development/python-modules/argon2_cffi/default.nix3
-rw-r--r--pkgs/development/python-modules/asana/default.nix2
-rw-r--r--pkgs/development/python-modules/async_timeout/default.nix1
-rw-r--r--pkgs/development/python-modules/asyncio/default.nix2
-rw-r--r--pkgs/development/python-modules/asynctest/default.nix2
-rw-r--r--pkgs/development/python-modules/autograd/default.nix2
-rw-r--r--pkgs/development/python-modules/behave/default.nix2
-rw-r--r--pkgs/development/python-modules/bootstrapped-pip/default.nix2
-rw-r--r--pkgs/development/python-modules/bottleneck/default.nix3
-rw-r--r--pkgs/development/python-modules/browsermob-proxy/default.nix1
-rw-r--r--pkgs/development/python-modules/bz2file/default.nix1
-rw-r--r--pkgs/development/python-modules/cachetools/default.nix2
-rw-r--r--pkgs/development/python-modules/can/default.nix1
-rw-r--r--pkgs/development/python-modules/canmatrix/default.nix1
-rw-r--r--pkgs/development/python-modules/canopen/default.nix2
-rw-r--r--pkgs/development/python-modules/cdecimal/default.nix2
-rw-r--r--pkgs/development/python-modules/cffi/default.nix2
-rw-r--r--pkgs/development/python-modules/cftime/default.nix3
-rw-r--r--pkgs/development/python-modules/chainer/default.nix2
-rw-r--r--pkgs/development/python-modules/characteristic/default.nix3
-rw-r--r--pkgs/development/python-modules/circus/default.nix2
-rw-r--r--pkgs/development/python-modules/cmd2/default.nix4
-rw-r--r--pkgs/development/python-modules/cmd2/old.nix2
-rw-r--r--pkgs/development/python-modules/coinmarketcap/default.nix2
-rw-r--r--pkgs/development/python-modules/colorlover/default.nix2
-rw-r--r--pkgs/development/python-modules/configargparse/default.nix2
-rw-r--r--pkgs/development/python-modules/configparser/default.nix2
-rw-r--r--pkgs/development/python-modules/construct/default.nix2
-rw-r--r--pkgs/development/python-modules/coverage/default.nix1
-rw-r--r--pkgs/development/python-modules/cram/default.nix2
-rw-r--r--pkgs/development/python-modules/credstash/default.nix2
-rw-r--r--pkgs/development/python-modules/cryptography_vectors/default.nix1
-rw-r--r--pkgs/development/python-modules/cupy/default.nix2
-rw-r--r--pkgs/development/python-modules/cx_freeze/default.nix2
-rw-r--r--pkgs/development/python-modules/datadog/default.nix2
-rw-r--r--pkgs/development/python-modules/dateparser/default.nix2
-rw-r--r--pkgs/development/python-modules/dateutil/1_5.nix20
-rw-r--r--pkgs/development/python-modules/dbus/default.nix4
-rw-r--r--pkgs/development/python-modules/debian/default.nix2
-rw-r--r--pkgs/development/python-modules/defusedxml/default.nix2
-rw-r--r--pkgs/development/python-modules/django_tagging/default.nix2
-rw-r--r--pkgs/development/python-modules/dkimpy/default.nix2
-rw-r--r--pkgs/development/python-modules/dugong/default.nix2
-rw-r--r--pkgs/development/python-modules/ecpy/default.nix2
-rw-r--r--pkgs/development/python-modules/email-validator/default.nix2
-rw-r--r--pkgs/development/python-modules/faulthandler/default.nix2
-rw-r--r--pkgs/development/python-modules/feedgen/default.nix2
-rw-r--r--pkgs/development/python-modules/flake8-future-import/default.nix3
-rw-r--r--pkgs/development/python-modules/flask-migrate/default.nix3
-rw-r--r--pkgs/development/python-modules/flit/default.nix1
-rw-r--r--pkgs/development/python-modules/fpdf/default.nix2
-rw-r--r--pkgs/development/python-modules/ftfy/default.nix2
-rw-r--r--pkgs/development/python-modules/gensim/default.nix3
-rw-r--r--pkgs/development/python-modules/graph-tool/2.x.x.nix2
-rw-r--r--pkgs/development/python-modules/graphite-api/default.nix45
-rw-r--r--pkgs/development/python-modules/graphite-api/flask-caching-rebased.patch132
-rw-r--r--pkgs/development/python-modules/gurobipy/linux.nix7
-rw-r--r--pkgs/development/python-modules/h5py/default.nix2
-rw-r--r--pkgs/development/python-modules/hupper/default.nix2
-rw-r--r--pkgs/development/python-modules/hypchat/default.nix2
-rw-r--r--pkgs/development/python-modules/hypothesis/default.nix4
-rw-r--r--pkgs/development/python-modules/image-match/default.nix34
-rw-r--r--pkgs/development/python-modules/iowait/default.nix2
-rw-r--r--pkgs/development/python-modules/ipython/5.nix2
-rw-r--r--pkgs/development/python-modules/joblib/default.nix3
-rw-r--r--pkgs/development/python-modules/jsmin/default.nix2
-rw-r--r--pkgs/development/python-modules/jupyter_core/default.nix1
-rw-r--r--pkgs/development/python-modules/jupyterhub/default.nix2
-rw-r--r--pkgs/development/python-modules/kaitaistruct/default.nix2
-rw-r--r--pkgs/development/python-modules/keras/default.nix2
-rw-r--r--pkgs/development/python-modules/ldap/default.nix2
-rw-r--r--pkgs/development/python-modules/ldappool/default.nix2
-rw-r--r--pkgs/development/python-modules/libarcus/default.nix4
-rw-r--r--pkgs/development/python-modules/libgpuarray/default.nix1
-rw-r--r--pkgs/development/python-modules/libversion/default.nix2
-rw-r--r--pkgs/development/python-modules/libvirt/default.nix2
-rw-r--r--pkgs/development/python-modules/linode-api/default.nix1
-rw-r--r--pkgs/development/python-modules/lmtpd/default.nix2
-rw-r--r--pkgs/development/python-modules/marionette-harness/default.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/manifestparser.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/marionette_driver.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozcrash.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozdevice.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozfile.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozhttpd.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozlog.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/moznetwork.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozprocess.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozprofile.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozrunner.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/moztest.nix1
-rw-r--r--pkgs/development/python-modules/marionette-harness/mozversion.nix1
-rw-r--r--pkgs/development/python-modules/moto/default.nix2
-rw-r--r--pkgs/development/python-modules/mrbob/default.nix2
-rw-r--r--pkgs/development/python-modules/murmurhash/default.nix1
-rw-r--r--pkgs/development/python-modules/mysqlclient/default.nix4
-rw-r--r--pkgs/development/python-modules/nbconvert/default.nix1
-rw-r--r--pkgs/development/python-modules/ncclient/default.nix1
-rw-r--r--pkgs/development/python-modules/netdisco/default.nix2
-rw-r--r--pkgs/development/python-modules/nltk/default.nix2
-rw-r--r--pkgs/development/python-modules/numpy/default.nix2
-rw-r--r--pkgs/development/python-modules/ovh/default.nix3
-rw-r--r--pkgs/development/python-modules/pandas/0.17.1.nix4
-rw-r--r--pkgs/development/python-modules/pandas/default.nix3
-rw-r--r--pkgs/development/python-modules/parse-type/default.nix2
-rw-r--r--pkgs/development/python-modules/parse/default.nix2
-rw-r--r--pkgs/development/python-modules/passlib/default.nix3
-rw-r--r--pkgs/development/python-modules/pelican/default.nix2
-rw-r--r--pkgs/development/python-modules/persistent/default.nix1
-rw-r--r--pkgs/development/python-modules/plaid-python/default.nix4
-rw-r--r--pkgs/development/python-modules/plaster-pastedeploy/default.nix2
-rw-r--r--pkgs/development/python-modules/plaster/default.nix2
-rw-r--r--pkgs/development/python-modules/pluggy/default.nix1
-rw-r--r--pkgs/development/python-modules/plumbum/default.nix3
-rw-r--r--pkgs/development/python-modules/poppler-qt5/default.nix2
-rw-r--r--pkgs/development/python-modules/powerline/default.nix3
-rw-r--r--pkgs/development/python-modules/progressbar2/default.nix1
-rw-r--r--pkgs/development/python-modules/prometheus_client/default.nix2
-rw-r--r--pkgs/development/python-modules/psutil/default.nix1
-rw-r--r--pkgs/development/python-modules/pyGithub/default.nix1
-rw-r--r--pkgs/development/python-modules/pyaml/default.nix1
-rw-r--r--pkgs/development/python-modules/pycaption/default.nix2
-rw-r--r--pkgs/development/python-modules/pycollada/default.nix2
-rw-r--r--pkgs/development/python-modules/pycrypto/default.nix2
-rw-r--r--pkgs/development/python-modules/pycryptodome/default.nix2
-rw-r--r--pkgs/development/python-modules/pygame/default.nix2
-rw-r--r--pkgs/development/python-modules/pygame_sdl2/default.nix2
-rw-r--r--pkgs/development/python-modules/pygccxml/default.nix2
-rw-r--r--pkgs/development/python-modules/pygobject/3.nix2
-rw-r--r--pkgs/development/python-modules/pymc3/default.nix1
-rw-r--r--pkgs/development/python-modules/pymvglive/default.nix2
-rw-r--r--pkgs/development/python-modules/pynacl/default.nix2
-rw-r--r--pkgs/development/python-modules/pyogg/default.nix2
-rw-r--r--pkgs/development/python-modules/pyowm/default.nix2
-rw-r--r--pkgs/development/python-modules/pyqt/4.x.nix4
-rw-r--r--pkgs/development/python-modules/pyqt/5.x.nix8
-rw-r--r--pkgs/development/python-modules/pysc2/default.nix1
-rw-r--r--pkgs/development/python-modules/pysdl2/default.nix2
-rw-r--r--pkgs/development/python-modules/pyside/default.nix2
-rw-r--r--pkgs/development/python-modules/pytest-cram/default.nix2
-rw-r--r--pkgs/development/python-modules/pytest-flake8/default.nix2
-rw-r--r--pkgs/development/python-modules/pytest-mock/default.nix2
-rw-r--r--pkgs/development/python-modules/pytest-xdist/default.nix2
-rw-r--r--pkgs/development/python-modules/python-oauth2/default.nix1
-rw-r--r--pkgs/development/python-modules/pytorch/default.nix4
-rw-r--r--pkgs/development/python-modules/pywavelets/default.nix36
-rw-r--r--pkgs/development/python-modules/pywbem/default.nix2
-rw-r--r--pkgs/development/python-modules/pyxml/default.nix2
-rw-r--r--pkgs/development/python-modules/pyzmq/default.nix3
-rw-r--r--pkgs/development/python-modules/qasm2image/default.nix6
-rw-r--r--pkgs/development/python-modules/qiskit/default.nix12
-rw-r--r--pkgs/development/python-modules/qiskit/setup.py.patch21
-rw-r--r--pkgs/development/python-modules/rdflib/default.nix3
-rw-r--r--pkgs/development/python-modules/redis/default.nix2
-rw-r--r--pkgs/development/python-modules/reportlab/default.nix4
-rw-r--r--pkgs/development/python-modules/requests-mock/default.nix2
-rw-r--r--pkgs/development/python-modules/responses/default.nix2
-rw-r--r--pkgs/development/python-modules/rhpl/default.nix2
-rw-r--r--pkgs/development/python-modules/rubymarshal/default.nix2
-rw-r--r--pkgs/development/python-modules/salmon-mail/default.nix2
-rw-r--r--pkgs/development/python-modules/scikit-image/default.nix40
-rw-r--r--pkgs/development/python-modules/scikitlearn/default.nix2
-rw-r--r--pkgs/development/python-modules/scipy/default.nix2
-rw-r--r--pkgs/development/python-modules/serversyncstorage/default.nix3
-rw-r--r--pkgs/development/python-modules/simpy/default.nix18
-rw-r--r--pkgs/development/python-modules/smart_open/default.nix1
-rw-r--r--pkgs/development/python-modules/spacy/default.nix2
-rw-r--r--pkgs/development/python-modules/sqlalchemy/default.nix1
-rw-r--r--pkgs/development/python-modules/sseclient/default.nix2
-rw-r--r--pkgs/development/python-modules/syncserver/default.nix3
-rw-r--r--pkgs/development/python-modules/tempora/default.nix2
-rw-r--r--pkgs/development/python-modules/tensorflow/bin.nix2
-rw-r--r--pkgs/development/python-modules/testfixtures/default.nix2
-rw-r--r--pkgs/development/python-modules/textacy/default.nix1
-rw-r--r--pkgs/development/python-modules/thespian/default.nix2
-rw-r--r--pkgs/development/python-modules/thinc/default.nix2
-rw-r--r--pkgs/development/python-modules/tiros/default.nix2
-rw-r--r--pkgs/development/python-modules/todoist/default.nix2
-rw-r--r--pkgs/development/python-modules/tokenserver/default.nix3
-rw-r--r--pkgs/development/python-modules/tox/default.nix3
-rw-r--r--pkgs/development/python-modules/tqdm/default.nix2
-rw-r--r--pkgs/development/python-modules/trezor/default.nix4
-rw-r--r--pkgs/development/python-modules/typed-ast/default.nix2
-rw-r--r--pkgs/development/python-modules/tzlocal/default.nix2
-rw-r--r--pkgs/development/python-modules/ukpostcodeparser/default.nix2
-rw-r--r--pkgs/development/python-modules/uranium/default.nix2
-rw-r--r--pkgs/development/python-modules/vcrpy/default.nix1
-rw-r--r--pkgs/development/python-modules/warrant/default.nix2
-rw-r--r--pkgs/development/python-modules/wptserve/default.nix1
-rw-r--r--pkgs/development/python-modules/wsproto/default.nix2
-rw-r--r--pkgs/development/python-modules/xarray/default.nix1
-rw-r--r--pkgs/development/python-modules/xgboost/default.nix30
-rw-r--r--pkgs/development/python-modules/xgboost/lib-path-for-python.patch59
-rw-r--r--pkgs/development/python-modules/zconfig/default.nix3
-rw-r--r--pkgs/development/python-modules/zconfig/remove-setlocale-test.patch24
-rw-r--r--pkgs/development/python-modules/zeep/default.nix1
-rw-r--r--pkgs/development/python-modules/zodb/default.nix1
-rw-r--r--pkgs/development/python-modules/zope_testrunner/default.nix1
211 files changed, 562 insertions, 317 deletions
diff --git a/pkgs/development/python-modules/Cython/default.nix b/pkgs/development/python-modules/Cython/default.nix
index 124e8b80ba024..fa07eee0d7e14 100644
--- a/pkgs/development/python-modules/Cython/default.nix
+++ b/pkgs/development/python-modules/Cython/default.nix
@@ -2,7 +2,6 @@
 , stdenv
 , buildPythonPackage
 , fetchPypi
-, isPy3k
 , python
 , glibcLocales
 , pkgconfig
diff --git a/pkgs/development/python-modules/GeoIP/default.nix b/pkgs/development/python-modules/GeoIP/default.nix
index 4f0a7d4aebc26..550fa1da3edf7 100644
--- a/pkgs/development/python-modules/GeoIP/default.nix
+++ b/pkgs/development/python-modules/GeoIP/default.nix
@@ -1,5 +1,4 @@
-{lib, buildPythonPackage, fetchPypi, isPy3k, incremental, ipaddress, twisted
-, automat, zope_interface, idna, pyopenssl, service-identity, pytest, mock, lsof
+{lib, buildPythonPackage, fetchPypi
 , geoip, nose}:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/JPype1/default.nix b/pkgs/development/python-modules/JPype1/default.nix
index 13bddd3ffb8f6..879cdb9bd0958 100644
--- a/pkgs/development/python-modules/JPype1/default.nix
+++ b/pkgs/development/python-modules/JPype1/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, isPy3k }:
+{ buildPythonPackage, fetchPypi, isPy3k }:
 
 buildPythonPackage rec {
   pname = "JPype1";
diff --git a/pkgs/development/python-modules/PyLD/default.nix b/pkgs/development/python-modules/PyLD/default.nix
index 29a792000e995..48878995bb4e8 100644
--- a/pkgs/development/python-modules/PyLD/default.nix
+++ b/pkgs/development/python-modules/PyLD/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, fetchFromGitHub, python, gnugrep }:
+{ stdenv, buildPythonPackage, fetchFromGitHub, python, gnugrep }:
 
 let
 
diff --git a/pkgs/development/python-modules/Theano/default.nix b/pkgs/development/python-modules/Theano/default.nix
index 30c820ec6c19d..e2b31cdda7942 100644
--- a/pkgs/development/python-modules/Theano/default.nix
+++ b/pkgs/development/python-modules/Theano/default.nix
@@ -9,7 +9,6 @@
 , isPy3k
 , nose
 , numpy
-, pydot_ng
 , scipy
 , six
 , libgpuarray
diff --git a/pkgs/development/python-modules/acme/default.nix b/pkgs/development/python-modules/acme/default.nix
index cd81a7facc227..820ee2a95d81a 100644
--- a/pkgs/development/python-modules/acme/default.nix
+++ b/pkgs/development/python-modules/acme/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage
 , certbot
 , nose
 , cryptography
diff --git a/pkgs/development/python-modules/aiohttp-jinja2/default.nix b/pkgs/development/python-modules/aiohttp-jinja2/default.nix
index f0756e1572e72..9f307f24dfaf3 100644
--- a/pkgs/development/python-modules/aiohttp-jinja2/default.nix
+++ b/pkgs/development/python-modules/aiohttp-jinja2/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, aiohttp, jinja2, pytest, pytest-aiohttp }:
+{ lib, buildPythonPackage, fetchPypi, aiohttp, jinja2, pytest, pytest-aiohttp }:
 
 buildPythonPackage rec {
   pname = "aiohttp-jinja2";
diff --git a/pkgs/development/python-modules/aiohttp/cors.nix b/pkgs/development/python-modules/aiohttp/cors.nix
index 3065bb17c05d3..00198cd27cffa 100644
--- a/pkgs/development/python-modules/aiohttp/cors.nix
+++ b/pkgs/development/python-modules/aiohttp/cors.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, pythonOlder
+{ lib, buildPythonPackage, fetchPypi, pythonOlder
 , typing, aiohttp
 }:
 
diff --git a/pkgs/development/python-modules/aiohue/default.nix b/pkgs/development/python-modules/aiohue/default.nix
index 2ad260f5d4069..1492a15aadf38 100644
--- a/pkgs/development/python-modules/aiohue/default.nix
+++ b/pkgs/development/python-modules/aiohue/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, aiohttp }:
+{ lib, buildPythonPackage, fetchPypi, aiohttp }:
 
 buildPythonPackage rec {
   pname = "aiohue";
diff --git a/pkgs/development/python-modules/anyjson/default.nix b/pkgs/development/python-modules/anyjson/default.nix
index ba32cf7ea695d..6db4bbdc31486 100644
--- a/pkgs/development/python-modules/anyjson/default.nix
+++ b/pkgs/development/python-modules/anyjson/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy3k, nose }:
+{ buildPythonPackage, fetchPypi, isPy3k, nose }:
 
 buildPythonPackage rec {
   pname = "anyjson";
diff --git a/pkgs/development/python-modules/application/default.nix b/pkgs/development/python-modules/application/default.nix
index 32314b81edca5..584eb3ae2c521 100644
--- a/pkgs/development/python-modules/application/default.nix
+++ b/pkgs/development/python-modules/application/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchdarcs, zope_interface, isPy3k }:
+{ buildPythonPackage, fetchdarcs, zope_interface, isPy3k }:
 
 buildPythonPackage rec {
   pname = "python-application";
diff --git a/pkgs/development/python-modules/area53/default.nix b/pkgs/development/python-modules/area53/default.nix
index 808ddc57096d2..20013b8a1ed44 100644
--- a/pkgs/development/python-modules/area53/default.nix
+++ b/pkgs/development/python-modules/area53/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , boto }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/argcomplete/default.nix b/pkgs/development/python-modules/argcomplete/default.nix
index 28b88d3b46a0e..37d97f42aa1fe 100644
--- a/pkgs/development/python-modules/argcomplete/default.nix
+++ b/pkgs/development/python-modules/argcomplete/default.nix
@@ -1,5 +1,5 @@
 { buildPythonPackage, fetchPypi, lib,
-  coverage, dicttoxml, flake8, pexpect, prettytable, requests_toolbelt
+  dicttoxml, pexpect, prettytable, requests_toolbelt
 }:
 buildPythonPackage rec {
   pname = "argcomplete";
diff --git a/pkgs/development/python-modules/argon2_cffi/default.nix b/pkgs/development/python-modules/argon2_cffi/default.nix
index f46efd9f496ec..ce371076256e9 100644
--- a/pkgs/development/python-modules/argon2_cffi/default.nix
+++ b/pkgs/development/python-modules/argon2_cffi/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, cffi
+{ cffi
 , six
 , hypothesis
 , pytest
diff --git a/pkgs/development/python-modules/asana/default.nix b/pkgs/development/python-modules/asana/default.nix
index fd89457ed310b..2fbe4932bedac 100644
--- a/pkgs/development/python-modules/asana/default.nix
+++ b/pkgs/development/python-modules/asana/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, pytest, requests, requests_oauthlib, six
+{ buildPythonPackage, pytest, requests, requests_oauthlib, six
 , fetchFromGitHub, responses, stdenv
 }:
 
diff --git a/pkgs/development/python-modules/async_timeout/default.nix b/pkgs/development/python-modules/async_timeout/default.nix
index bc8e375271d6a..ee15be954186a 100644
--- a/pkgs/development/python-modules/async_timeout/default.nix
+++ b/pkgs/development/python-modules/async_timeout/default.nix
@@ -1,7 +1,6 @@
 { lib
 , fetchPypi
 , buildPythonPackage
-, pytestrunner
 , pythonOlder
 }:
 
diff --git a/pkgs/development/python-modules/asyncio/default.nix b/pkgs/development/python-modules/asyncio/default.nix
index c3ed7bed7426f..489a31b3242c1 100644
--- a/pkgs/development/python-modules/asyncio/default.nix
+++ b/pkgs/development/python-modules/asyncio/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy33, pythonOlder }:
+{ stdenv, buildPythonPackage, fetchPypi, pythonOlder }:
 
 buildPythonPackage rec {
   pname = "asyncio";
diff --git a/pkgs/development/python-modules/asynctest/default.nix b/pkgs/development/python-modules/asynctest/default.nix
index 0004badd6f402..187e0924ccacd 100644
--- a/pkgs/development/python-modules/asynctest/default.nix
+++ b/pkgs/development/python-modules/asynctest/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, fetchFromGitHub, pythonOlder, python }:
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, python }:
 
 buildPythonPackage rec {
   pname = "asynctest";
diff --git a/pkgs/development/python-modules/autograd/default.nix b/pkgs/development/python-modules/autograd/default.nix
index 1c3c1fdefbeab..bf7c35fa69895 100644
--- a/pkgs/development/python-modules/autograd/default.nix
+++ b/pkgs/development/python-modules/autograd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, numpy, future, nose }:
+{ stdenv, buildPythonPackage, fetchPypi, numpy, future }:
 
 buildPythonPackage rec {
   pname = "autograd";
diff --git a/pkgs/development/python-modules/behave/default.nix b/pkgs/development/python-modules/behave/default.nix
index a4a7b63b8a3f0..6fc3f16b3ad22 100644
--- a/pkgs/development/python-modules/behave/default.nix
+++ b/pkgs/development/python-modules/behave/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchPypi
-, buildPythonApplication, isPy27, python, pythonOlder
+, buildPythonApplication, python, pythonOlder
 , mock, nose, pathpy, pyhamcrest, pytest
 , glibcLocales, parse, parse-type, six
 , traceback2
diff --git a/pkgs/development/python-modules/bootstrapped-pip/default.nix b/pkgs/development/python-modules/bootstrapped-pip/default.nix
index 240dd5513e85c..2a9cb2a2cfdf9 100644
--- a/pkgs/development/python-modules/bootstrapped-pip/default.nix
+++ b/pkgs/development/python-modules/bootstrapped-pip/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, python, fetchPypi, fetchurl, makeWrapper, unzip }:
+{ stdenv, python, fetchPypi, makeWrapper, unzip }:
 
 let
   wheel_source = fetchPypi {
diff --git a/pkgs/development/python-modules/bottleneck/default.nix b/pkgs/development/python-modules/bottleneck/default.nix
index 791b05e81cad2..c9ca8f7ec0473 100644
--- a/pkgs/development/python-modules/bottleneck/default.nix
+++ b/pkgs/development/python-modules/bottleneck/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , nose
 , numpy
diff --git a/pkgs/development/python-modules/browsermob-proxy/default.nix b/pkgs/development/python-modules/browsermob-proxy/default.nix
index 5a9bae58bd6d4..b5da73a32d21e 100644
--- a/pkgs/development/python-modules/browsermob-proxy/default.nix
+++ b/pkgs/development/python-modules/browsermob-proxy/default.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , requests
diff --git a/pkgs/development/python-modules/bz2file/default.nix b/pkgs/development/python-modules/bz2file/default.nix
index 3bc9882585f63..8efb1c083f26d 100644
--- a/pkgs/development/python-modules/bz2file/default.nix
+++ b/pkgs/development/python-modules/bz2file/default.nix
@@ -1,6 +1,5 @@
 { lib
 , buildPythonPackage
-, isPy3k
 , fetchPypi
 }:
 
diff --git a/pkgs/development/python-modules/cachetools/default.nix b/pkgs/development/python-modules/cachetools/default.nix
index de15ffaabc693..d4b9195c5558e 100644
--- a/pkgs/development/python-modules/cachetools/default.nix
+++ b/pkgs/development/python-modules/cachetools/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPyPy }:
+{ stdenv, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "cachetools";
diff --git a/pkgs/development/python-modules/can/default.nix b/pkgs/development/python-modules/can/default.nix
index 395122b4da9e1..f85f80ea23991 100644
--- a/pkgs/development/python-modules/can/default.nix
+++ b/pkgs/development/python-modules/can/default.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , pyserial
diff --git a/pkgs/development/python-modules/canmatrix/default.nix b/pkgs/development/python-modules/canmatrix/default.nix
index 99ac6c3ec45ba..3e07188986d07 100644
--- a/pkgs/development/python-modules/canmatrix/default.nix
+++ b/pkgs/development/python-modules/canmatrix/default.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchFromGitHub
 , python
diff --git a/pkgs/development/python-modules/canopen/default.nix b/pkgs/development/python-modules/canopen/default.nix
index 08ae54e0b73bb..1afe23416331b 100644
--- a/pkgs/development/python-modules/canopen/default.nix
+++ b/pkgs/development/python-modules/canopen/default.nix
@@ -1,7 +1,5 @@
 { lib
-, stdenv
 , buildPythonPackage
-, fetchPypi
 , fetchFromGitHub
 , nose
 , can
diff --git a/pkgs/development/python-modules/cdecimal/default.nix b/pkgs/development/python-modules/cdecimal/default.nix
index 2c0b0e623ca96..0c636e1208847 100644
--- a/pkgs/development/python-modules/cdecimal/default.nix
+++ b/pkgs/development/python-modules/cdecimal/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, wget, buildPythonPackage, isPy3k }:
+{ stdenv, fetchurl, buildPythonPackage, isPy3k }:
 
 with stdenv.lib;
 
diff --git a/pkgs/development/python-modules/cffi/default.nix b/pkgs/development/python-modules/cffi/default.nix
index 7247694227615..3f1456f6e948d 100644
--- a/pkgs/development/python-modules/cffi/default.nix
+++ b/pkgs/development/python-modules/cffi/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, isPy27, isPyPy, fetchPypi, libffi, pycparser, pytest }:
+{ stdenv, buildPythonPackage, isPyPy, fetchPypi, libffi, pycparser, pytest }:
 
 if isPyPy then null else buildPythonPackage rec {
   pname = "cffi";
diff --git a/pkgs/development/python-modules/cftime/default.nix b/pkgs/development/python-modules/cftime/default.nix
index 0e355723604e4..425a53987caf7 100644
--- a/pkgs/development/python-modules/cftime/default.nix
+++ b/pkgs/development/python-modules/cftime/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , pytest
 , coveralls
diff --git a/pkgs/development/python-modules/chainer/default.nix b/pkgs/development/python-modules/chainer/default.nix
index b07a205ba2158..cc75649119bd4 100644
--- a/pkgs/development/python-modules/chainer/default.nix
+++ b/pkgs/development/python-modules/chainer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, python
+{ stdenv, lib
 , buildPythonPackage, fetchPypi, isPy3k
 , filelock, protobuf, numpy, pytest, mock
 , cupy, cudaSupport ? false
diff --git a/pkgs/development/python-modules/characteristic/default.nix b/pkgs/development/python-modules/characteristic/default.nix
index f004e6d541c5e..1c42b1283eee6 100644
--- a/pkgs/development/python-modules/characteristic/default.nix
+++ b/pkgs/development/python-modules/characteristic/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , pytest
 }:
diff --git a/pkgs/development/python-modules/circus/default.nix b/pkgs/development/python-modules/circus/default.nix
index 7e6cc206cdc0b..0a82238b703e3 100644
--- a/pkgs/development/python-modules/circus/default.nix
+++ b/pkgs/development/python-modules/circus/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , iowait, psutil, pyzmq, tornado, mock }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/cmd2/default.nix b/pkgs/development/python-modules/cmd2/default.nix
index e83fd4163e4a7..967941666c848 100644
--- a/pkgs/development/python-modules/cmd2/default.nix
+++ b/pkgs/development/python-modules/cmd2/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchPypi, buildPythonPackage, pythonOlder, isPy3k
 , pyperclip, six, pyparsing, vim, wcwidth, colorama
-, contextlib2 ? null, subprocess32 ? null
-, pytest, mock, which, fetchFromGitHub, glibcLocales
+, contextlib2 ? null
+, pytest, mock, which, glibcLocales
 }:
 buildPythonPackage rec {
   pname = "cmd2";
diff --git a/pkgs/development/python-modules/cmd2/old.nix b/pkgs/development/python-modules/cmd2/old.nix
index 5ffa51def0d27..7778e73f92f75 100644
--- a/pkgs/development/python-modules/cmd2/old.nix
+++ b/pkgs/development/python-modules/cmd2/old.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, pythonOlder
+{ stdenv, buildPythonPackage, pythonOlder
 , pyperclip, six, pyparsing, vim
 , contextlib2 ? null, subprocess32 ? null
 , pytest, mock, which, fetchFromGitHub, glibcLocales
diff --git a/pkgs/development/python-modules/coinmarketcap/default.nix b/pkgs/development/python-modules/coinmarketcap/default.nix
index cfd6389ce5fb4..bcf3271479657 100644
--- a/pkgs/development/python-modules/coinmarketcap/default.nix
+++ b/pkgs/development/python-modules/coinmarketcap/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, requests-cache }:
+{ lib, buildPythonPackage, fetchPypi, requests-cache }:
 
 buildPythonPackage rec {
   pname = "coinmarketcap";
diff --git a/pkgs/development/python-modules/colorlover/default.nix b/pkgs/development/python-modules/colorlover/default.nix
index 1ccb31d5120a7..14bae27592ab7 100644
--- a/pkgs/development/python-modules/colorlover/default.nix
+++ b/pkgs/development/python-modules/colorlover/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi, python, stdenv, nose
+{ buildPythonPackage, fetchPypi, stdenv
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/configargparse/default.nix b/pkgs/development/python-modules/configargparse/default.nix
index 6a52076252e86..62e63a8e5b31b 100644
--- a/pkgs/development/python-modules/configargparse/default.nix
+++ b/pkgs/development/python-modules/configargparse/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "ConfigArgParse";
diff --git a/pkgs/development/python-modules/configparser/default.nix b/pkgs/development/python-modules/configparser/default.nix
index 8e770c504c3b2..7bef3e8293515 100644
--- a/pkgs/development/python-modules/configparser/default.nix
+++ b/pkgs/development/python-modules/configparser/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy3k }:
+{ stdenv, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "configparser";
diff --git a/pkgs/development/python-modules/construct/default.nix b/pkgs/development/python-modules/construct/default.nix
index afba2e17bf64b..680f6e02cd01b 100644
--- a/pkgs/development/python-modules/construct/default.nix
+++ b/pkgs/development/python-modules/construct/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchFromGitHub, six, pytest, pythonOlder }:
+{ stdenv, buildPythonPackage, fetchFromGitHub, six, pytest }:
 
 buildPythonPackage rec {
   pname = "construct";
diff --git a/pkgs/development/python-modules/coverage/default.nix b/pkgs/development/python-modules/coverage/default.nix
index 4d2a168f79cc0..0aa38aed296d7 100644
--- a/pkgs/development/python-modules/coverage/default.nix
+++ b/pkgs/development/python-modules/coverage/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, isPy3k
 , mock
 }:
 
diff --git a/pkgs/development/python-modules/cram/default.nix b/pkgs/development/python-modules/cram/default.nix
index 232a4a19fd858..f27cfc44e57bd 100644
--- a/pkgs/development/python-modules/cram/default.nix
+++ b/pkgs/development/python-modules/cram/default.nix
@@ -1,4 +1,4 @@
-{stdenv, lib, buildPythonPackage, fetchPypi, bash, which, writeText}:
+{stdenv, lib, buildPythonPackage, fetchPypi, bash, which}:
 
 buildPythonPackage rec {
   version = "0.7";
diff --git a/pkgs/development/python-modules/credstash/default.nix b/pkgs/development/python-modules/credstash/default.nix
index e19850be8ceef..db48326535dbd 100644
--- a/pkgs/development/python-modules/credstash/default.nix
+++ b/pkgs/development/python-modules/credstash/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, fetchpatch, cryptography, boto3, pyyaml, docutils, nose }:
+{ stdenv, buildPythonPackage, fetchPypi, cryptography, boto3, pyyaml, docutils, nose }:
 
 buildPythonPackage rec {
   pname = "credstash";
diff --git a/pkgs/development/python-modules/cryptography_vectors/default.nix b/pkgs/development/python-modules/cryptography_vectors/default.nix
index bcab5c4347595..6285ac28fce19 100644
--- a/pkgs/development/python-modules/cryptography_vectors/default.nix
+++ b/pkgs/development/python-modules/cryptography_vectors/default.nix
@@ -1,6 +1,5 @@
 { buildPythonPackage
 , fetchPypi
-, cryptography
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/cupy/default.nix b/pkgs/development/python-modules/cupy/default.nix
index 3a3aeb7b22670..da742b310507d 100644
--- a/pkgs/development/python-modules/cupy/default.nix
+++ b/pkgs/development/python-modules/cupy/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, python, buildPythonPackage
+{ stdenv, buildPythonPackage
 , fetchPypi, isPy3k, linuxPackages, gcc5
 , fastrlock, numpy, six, wheel, pytest, mock
 , cudatoolkit, cudnn, nccl
diff --git a/pkgs/development/python-modules/cx_freeze/default.nix b/pkgs/development/python-modules/cx_freeze/default.nix
index 69a5e8c11d486..67120bf0f3d00 100644
--- a/pkgs/development/python-modules/cx_freeze/default.nix
+++ b/pkgs/development/python-modules/cx_freeze/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPyPy, isPy35, ncurses }:
+{ stdenv, buildPythonPackage, fetchPypi, ncurses }:
 
 buildPythonPackage rec {
   pname = "cx_Freeze";
diff --git a/pkgs/development/python-modules/datadog/default.nix b/pkgs/development/python-modules/datadog/default.nix
index d01029652a98e..47c206fda5e8b 100644
--- a/pkgs/development/python-modules/datadog/default.nix
+++ b/pkgs/development/python-modules/datadog/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchFromGitHub, isPy3k
+{ lib, buildPythonPackage, fetchFromGitHub
 , decorator, requests, simplejson
 , nose, mock }:
 
diff --git a/pkgs/development/python-modules/dateparser/default.nix b/pkgs/development/python-modules/dateparser/default.nix
index fdc408e1c4c10..f6af0855b9f54 100644
--- a/pkgs/development/python-modules/dateparser/default.nix
+++ b/pkgs/development/python-modules/dateparser/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchPypi, buildPythonPackage, isPy3k
+{ lib, fetchPypi, buildPythonPackage
 , nose
 , parameterized
 , mock
diff --git a/pkgs/development/python-modules/dateutil/1_5.nix b/pkgs/development/python-modules/dateutil/1_5.nix
deleted file mode 100644
index 0808cf4f20110..0000000000000
--- a/pkgs/development/python-modules/dateutil/1_5.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy3k, six }:
-
-buildPythonPackage rec {
-  pname = "python-dateutil";
-  version = "2.7.3";
-  disabled = isPy3k;
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8";
-  };
-
-  propagatedBuildInputs = [ six ];
-
-  meta = with stdenv.lib; {
-    description = "Powerful extensions to the standard datetime module";
-    homepage = https://pypi.python.org/pypi/python-dateutil;
-    license = "BSD-style";
-  };
-}
diff --git a/pkgs/development/python-modules/dbus/default.nix b/pkgs/development/python-modules/dbus/default.nix
index f207683d2b0b0..8f3f331fd5097 100644
--- a/pkgs/development/python-modules/dbus/default.nix
+++ b/pkgs/development/python-modules/dbus/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchurl, buildPythonPackage, python, pkgconfig, dbus, dbus-glib, dbus_tools, isPyPy
+{ lib, fetchurl, buildPythonPackage, python, pkgconfig, dbus, dbus-glib, isPyPy
 , ncurses, pygobject3 }:
 
 if isPyPy then throw "dbus-python not supported for interpreter ${python.executable}" else buildPythonPackage rec {
@@ -15,7 +15,7 @@ if isPyPy then throw "dbus-python not supported for interpreter ${python.executa
 
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ dbus dbus-glib ]
-    ++ lib.optionals doCheck [ dbus_tools pygobject3 ]
+    ++ lib.optionals doCheck [ dbus.out pygobject3 ]
     # My guess why it's sometimes trying to -lncurses.
     # It seems not to retain the dependency anyway.
     ++ lib.optional (! python ? modules) ncurses;
diff --git a/pkgs/development/python-modules/debian/default.nix b/pkgs/development/python-modules/debian/default.nix
index 937b6df422927..e4cd21bce4a37 100644
--- a/pkgs/development/python-modules/debian/default.nix
+++ b/pkgs/development/python-modules/debian/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , chardet, six}:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/defusedxml/default.nix b/pkgs/development/python-modules/defusedxml/default.nix
index 6426333ed26a3..3281953650064 100644
--- a/pkgs/development/python-modules/defusedxml/default.nix
+++ b/pkgs/development/python-modules/defusedxml/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi }:
+{ buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "defusedxml";
diff --git a/pkgs/development/python-modules/django_tagging/default.nix b/pkgs/development/python-modules/django_tagging/default.nix
index 6b048db90e308..fa06117a64495 100644
--- a/pkgs/development/python-modules/django_tagging/default.nix
+++ b/pkgs/development/python-modules/django_tagging/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, django }:
+{ buildPythonPackage, fetchPypi, django }:
 
 buildPythonPackage rec {
   pname = "django-tagging";
diff --git a/pkgs/development/python-modules/dkimpy/default.nix b/pkgs/development/python-modules/dkimpy/default.nix
index dabc3244592af..7ce8877bbce01 100644
--- a/pkgs/development/python-modules/dkimpy/default.nix
+++ b/pkgs/development/python-modules/dkimpy/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, openssl, makeWrapper, buildPythonPackage
+{ stdenv, fetchPypi, openssl, buildPythonPackage
 , pytest, dnspython, pynacl, authres, python }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/dugong/default.nix b/pkgs/development/python-modules/dugong/default.nix
index 27b1a3e6122c3..20f4bc7e0c33f 100644
--- a/pkgs/development/python-modules/dugong/default.nix
+++ b/pkgs/development/python-modules/dugong/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, pythonOlder }:
+{ buildPythonPackage, fetchPypi, pythonOlder }:
 
 buildPythonPackage rec {
   pname = "dugong";
diff --git a/pkgs/development/python-modules/ecpy/default.nix b/pkgs/development/python-modules/ecpy/default.nix
index 334778c93aab4..97f04828300b8 100644
--- a/pkgs/development/python-modules/ecpy/default.nix
+++ b/pkgs/development/python-modules/ecpy/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchPypi, buildPythonPackage, isPy3k, hidapi
-, pycrypto, pillow, protobuf, future, ecpy
+, pycrypto, pillow, protobuf, future
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/email-validator/default.nix b/pkgs/development/python-modules/email-validator/default.nix
index a0a619a39c848..99859ac151754 100644
--- a/pkgs/development/python-modules/email-validator/default.nix
+++ b/pkgs/development/python-modules/email-validator/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi, isPy3k, dnspython, idna, ipaddress }:
+{ lib, buildPythonPackage, fetchPypi, isPy3k, dnspython, idna, ipaddress }:
 
 buildPythonPackage rec {
   pname = "email_validator";
diff --git a/pkgs/development/python-modules/faulthandler/default.nix b/pkgs/development/python-modules/faulthandler/default.nix
index a05ac1ba679eb..c4d600ec994e2 100644
--- a/pkgs/development/python-modules/faulthandler/default.nix
+++ b/pkgs/development/python-modules/faulthandler/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, fetchpatch }:
+{ stdenv, fetchPypi, buildPythonPackage }:
 
 buildPythonPackage rec {
   pname = "faulthandler";
diff --git a/pkgs/development/python-modules/feedgen/default.nix b/pkgs/development/python-modules/feedgen/default.nix
index c5ac67106a2fe..67ff86e8f7292 100644
--- a/pkgs/development/python-modules/feedgen/default.nix
+++ b/pkgs/development/python-modules/feedgen/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, fetchurl, dateutil, lxml }:
+{ stdenv, buildPythonPackage, fetchPypi, dateutil, lxml }:
 
 buildPythonPackage rec {
   pname = "feedgen";
diff --git a/pkgs/development/python-modules/flake8-future-import/default.nix b/pkgs/development/python-modules/flake8-future-import/default.nix
index 2612cfde1f50f..eaed804245fa5 100644
--- a/pkgs/development/python-modules/flake8-future-import/default.nix
+++ b/pkgs/development/python-modules/flake8-future-import/default.nix
@@ -1,5 +1,4 @@
-{ lib, fetchFromGitHub, buildPythonPackage, python, flake8, six,
-  fetchurl }:
+{ lib, fetchFromGitHub, buildPythonPackage, flake8, six }:
 
 buildPythonPackage rec {
   pname = "flake8-future-import";
diff --git a/pkgs/development/python-modules/flask-migrate/default.nix b/pkgs/development/python-modules/flask-migrate/default.nix
index f4fc3cf3fa242..89cbdf0fbf820 100644
--- a/pkgs/development/python-modules/flask-migrate/default.nix
+++ b/pkgs/development/python-modules/flask-migrate/default.nix
@@ -1,5 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy3k, python, glibcLocales, flask, flask_sqlalchemy, flask_script, alembic
-}:
+{ stdenv, buildPythonPackage, fetchPypi, isPy3k, glibcLocales, flask, flask_sqlalchemy, flask_script, alembic }:
 
 with stdenv.lib;
 
diff --git a/pkgs/development/python-modules/flit/default.nix b/pkgs/development/python-modules/flit/default.nix
index 17b9d018c397a..d9a0682a02e00 100644
--- a/pkgs/development/python-modules/flit/default.nix
+++ b/pkgs/development/python-modules/flit/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, fetchurl
 , isPy3k
 , docutils
 , requests
diff --git a/pkgs/development/python-modules/fpdf/default.nix b/pkgs/development/python-modules/fpdf/default.nix
index c09d54ad55553..a528244cb0f9b 100644
--- a/pkgs/development/python-modules/fpdf/default.nix
+++ b/pkgs/development/python-modules/fpdf/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, writeText, buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "fpdf";
diff --git a/pkgs/development/python-modules/ftfy/default.nix b/pkgs/development/python-modules/ftfy/default.nix
index ca1c9a09e4eb9..d2e806e43b901 100644
--- a/pkgs/development/python-modules/ftfy/default.nix
+++ b/pkgs/development/python-modules/ftfy/default.nix
@@ -4,8 +4,6 @@
 , html5lib
 , wcwidth
 , nose
-, python
-, isPy3k
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/gensim/default.nix b/pkgs/development/python-modules/gensim/default.nix
index 3faa6d914d257..1b3ab52c4c396 100644
--- a/pkgs/development/python-modules/gensim/default.nix
+++ b/pkgs/development/python-modules/gensim/default.nix
@@ -5,9 +5,6 @@
 , six
 , scipy
 , smart_open
-, scikitlearn
-, testfixtures
-, unittest2
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/graph-tool/2.x.x.nix b/pkgs/development/python-modules/graph-tool/2.x.x.nix
index 7f2c7a582290d..aa8050de08855 100644
--- a/pkgs/development/python-modules/graph-tool/2.x.x.nix
+++ b/pkgs/development/python-modules/graph-tool/2.x.x.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, python, cairomm, sparsehash, pycairo, autoreconfHook,
-pkgconfig, boost, expat, scipy, numpy, cgal, gmp, mpfr, lndir,
+pkgconfig, boost, expat, scipy, cgal, gmp, mpfr,
 gobjectIntrospection, pygobject3, gtk3, matplotlib, ncurses,
 buildPythonPackage }:
 
diff --git a/pkgs/development/python-modules/graphite-api/default.nix b/pkgs/development/python-modules/graphite-api/default.nix
new file mode 100644
index 0000000000000..7f1726a2c4b9e
--- /dev/null
+++ b/pkgs/development/python-modules/graphite-api/default.nix
@@ -0,0 +1,45 @@
+{ buildPythonPackage, fetchFromGitHub, lib, flask, flask-caching, cairocffi, pyparsing, pytz, pyyaml
+, raven, six, structlog, tzlocal, nose, mock, cairo, isPyPy
+}:
+
+buildPythonPackage rec {
+  pname = "graphite-api";
+  version = "1.1.3";
+
+  disabled = isPyPy;
+
+  src = fetchFromGitHub {
+    owner = "brutasse";
+    repo = "graphite-api";
+    rev = version;
+    sha256 = "0sz3kav2024ms2z4q03pigcf080gsr5v774z9bp3zw29k2p47ass";
+  };
+
+  # https://github.com/brutasse/graphite-api/pull/239 rebased onto 1.1.3
+  patches = [ ./flask-caching-rebased.patch ];
+
+  checkPhase = "nosetests";
+
+  propagatedBuildInputs = [
+    flask
+    flask-caching
+    cairocffi
+    pyparsing
+    pytz
+    pyyaml
+    raven
+    six
+    structlog
+    tzlocal
+  ];
+
+  checkInputs = [ nose mock ];
+
+  LD_LIBRARY_PATH = "${cairo.out}/lib";
+
+  meta = with lib; {
+    description = "Graphite-web, without the interface. Just the rendering HTTP API";
+    homepage = https://github.com/brutasse/graphite-api;
+    license = licenses.asl20;
+  };
+}
diff --git a/pkgs/development/python-modules/graphite-api/flask-caching-rebased.patch b/pkgs/development/python-modules/graphite-api/flask-caching-rebased.patch
new file mode 100644
index 0000000000000..2d4a2f29bc438
--- /dev/null
+++ b/pkgs/development/python-modules/graphite-api/flask-caching-rebased.patch
@@ -0,0 +1,132 @@
+diff --git a/graphite_api/config.py b/graphite_api/config.py
+index 5e1e382..dc033a8 100644
+--- a/graphite_api/config.py
++++ b/graphite_api/config.py
+@@ -112,11 +112,11 @@ def configure(app):
+     app.cache = None
+     if 'cache' in config:
+         try:
+-            from flask.ext.cache import Cache
++            from flask_caching import Cache
+         except ImportError:
+             warnings.warn("'cache' is provided in the configuration but "
+-                          "Flask-Cache is not installed. Please `pip install "
+-                          "Flask-Cache`.")
++                          "flask-caching is not installed. Please `pip "
++                          "install flask-caching`.")
+         else:
+             cache_conf = {'CACHE_DEFAULT_TIMEOUT': 60,
+                           'CACHE_KEY_PREFIX': 'graphite-api:'}
+diff --git a/requirements.txt b/requirements.txt
+index c68b446..7826b0c 100644
+--- a/requirements.txt
++++ b/requirements.txt
+@@ -1,5 +1,5 @@
+ Flask
+-Flask-Cache
++Flask-Caching
+ cairocffi
+ pyparsing>=1.5.7
+ pytz
+diff --git a/setup.py b/setup.py
+index 0337cbe..df07989 100644
+--- a/setup.py
++++ b/setup.py
+@@ -38,7 +38,7 @@ setup(
+     extras_require={
+         'sentry': ['raven[flask]'],
+         'cyanite': ['cyanite'],
+-        'cache': ['Flask-Cache'],
++        'cache': ['Flask-Caching'],
+         'statsd': ['statsd'],
+     },
+     zip_safe=False,
+diff --git a/tests/test_render.py b/tests/test_render.py
+index be5609d..a0e7190 100644
+--- a/tests/test_render.py
++++ b/tests/test_render.py
+@@ -8,7 +8,7 @@ from graphite_api._vendor import whisper
+ from . import TestCase, WHISPER_DIR
+ 
+ try:
+-    from flask.ext.cache import Cache
++    from flask_caching import Cache
+ except ImportError:
+     Cache = None
+ 
+diff --git a/tox.ini b/tox.ini
+index 85a0abb..c820393 100644
+--- a/tox.ini
++++ b/tox.ini
+@@ -47,7 +47,7 @@ basepython = python2.7
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 	mock
+ 
+@@ -56,7 +56,7 @@ basepython = python3.3
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 
+ [testenv:py34]
+@@ -66,7 +66,7 @@ commands =
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 
+ [testenv:py35]
+@@ -76,7 +76,7 @@ commands =
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 
+ [testenv:pyparsing1]
+@@ -84,7 +84,7 @@ basepython = python2.7
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing==1.5.7
+ 	mock
+ 
+@@ -93,7 +93,7 @@ basepython = pypy
+ deps =
+ 	{[testenv]deps}
+ 	Flask
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 	mock
+ 
+@@ -102,7 +102,7 @@ basepython = python2.7
+ deps =
+ 	{[testenv]deps}
+ 	Flask<0.9
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 	mock
+ 
+@@ -111,7 +111,7 @@ basepython = python2.7
+ deps =
+ 	{[testenv]deps}
+ 	Flask<0.10
+-	Flask-Cache
++	Flask-Caching
+ 	pyparsing
+ 	mock
+ 
diff --git a/pkgs/development/python-modules/gurobipy/linux.nix b/pkgs/development/python-modules/gurobipy/linux.nix
index 8afe6379dc7c8..d572b10fd625a 100644
--- a/pkgs/development/python-modules/gurobipy/linux.nix
+++ b/pkgs/development/python-modules/gurobipy/linux.nix
@@ -1,10 +1,7 @@
 { fetchurl, python }:
 assert python.pkgs.isPy27;
-let utf =
-  if python.ucsEncoding == 2 then "16"
-  else if python.ucsEncoding == 4 then "32"
-  else throw "Unsupported python UCS encoding UCS${toString python.ucsEncoding}";
-in python.pkgs.buildPythonPackage
+
+python.pkgs.buildPythonPackage
   { pname = "gurobipy";
     version = "7.5.2";
     src = fetchurl
diff --git a/pkgs/development/python-modules/h5py/default.nix b/pkgs/development/python-modules/h5py/default.nix
index 144e826b675d7..2b95b1473cb21 100644
--- a/pkgs/development/python-modules/h5py/default.nix
+++ b/pkgs/development/python-modules/h5py/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, fetchpatch, isPy27, python, buildPythonPackage
+{ stdenv, fetchPypi, isPy27, python, buildPythonPackage
 , numpy, hdf5, cython, six, pkgconfig, unittest2
 , mpi4py ? null, openssh }:
 
diff --git a/pkgs/development/python-modules/hupper/default.nix b/pkgs/development/python-modules/hupper/default.nix
index bbd4760bdf893..5131e64a3c2b7 100644
--- a/pkgs/development/python-modules/hupper/default.nix
+++ b/pkgs/development/python-modules/hupper/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, python
+{ stdenv, buildPythonPackage, fetchPypi
 , pytest, pytestcov, watchdog, mock
 }:
 
diff --git a/pkgs/development/python-modules/hypchat/default.nix b/pkgs/development/python-modules/hypchat/default.nix
index b72544611833b..8337fd2230ba5 100644
--- a/pkgs/development/python-modules/hypchat/default.nix
+++ b/pkgs/development/python-modules/hypchat/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , requests, six, dateutil }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/hypothesis/default.nix b/pkgs/development/python-modules/hypothesis/default.nix
index 83e369ec0fcdf..6701c5a5b7e98 100644
--- a/pkgs/development/python-modules/hypothesis/default.nix
+++ b/pkgs/development/python-modules/hypothesis/default.nix
@@ -1,6 +1,6 @@
-{ lib, buildPythonPackage, fetchFromGitHub, python
+{ lib, buildPythonPackage, fetchFromGitHub
 , isPy3k, attrs, coverage, enum34
-, doCheck ? true, pytest, pytest_xdist, flake8, flaky, mock
+, doCheck ? true, pytest, pytest_xdist, flaky, mock
 }:
 buildPythonPackage rec {
   # http://hypothesis.readthedocs.org/en/latest/packaging.html
diff --git a/pkgs/development/python-modules/image-match/default.nix b/pkgs/development/python-modules/image-match/default.nix
new file mode 100644
index 0000000000000..49d1062abc319
--- /dev/null
+++ b/pkgs/development/python-modules/image-match/default.nix
@@ -0,0 +1,34 @@
+{ stdenv, buildPythonPackage, fetchFromGitHub, pytestrunner, scikitimage }:
+
+buildPythonPackage {
+  pname = "image-match";
+  version = "1.1.2";
+
+  src = fetchFromGitHub {
+    owner = "ascribe";
+    repo = "image-match";
+    rev = "1c5f3170555540bdf43ff8b8189c4e8c13a8b950";
+    sha256 = "0vlmpidmhkpgdzw2k03x5layhijcrjpmyfd93yv2ls77ihz00ix5";
+  };
+
+  buildInputs = [ pytestrunner ];
+
+  propagatedBuildInputs = [
+    scikitimage
+  ];
+
+  # remove elasticsearch requirement due to version incompatibility
+  postPatch = ''
+    substituteInPlace setup.py --replace "'elasticsearch>=5.0.0,<6.0.0'," ""
+  '';
+
+  # tests cannot work without elasticsearch
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/ascribe/image-match;
+    description = "Quickly search over billions of images";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ cmcdragonkai ];
+  };
+}
diff --git a/pkgs/development/python-modules/iowait/default.nix b/pkgs/development/python-modules/iowait/default.nix
index ef2444c0d2f05..c67d56b153e04 100644
--- a/pkgs/development/python-modules/iowait/default.nix
+++ b/pkgs/development/python-modules/iowait/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi }:
+{ buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "iowait";
diff --git a/pkgs/development/python-modules/ipython/5.nix b/pkgs/development/python-modules/ipython/5.nix
index a91988bd97d06..f2066fee2a4a2 100644
--- a/pkgs/development/python-modules/ipython/5.nix
+++ b/pkgs/development/python-modules/ipython/5.nix
@@ -2,7 +2,6 @@
 , stdenv
 , buildPythonPackage
 , fetchPypi
-, pythonOlder
 # Build dependencies
 , glibcLocales
 # Test dependencies
@@ -13,7 +12,6 @@
 , mock
 # Runtime dependencies
 , backports_shutil_get_terminal_size
-, jedi
 , decorator
 , pathlib2
 , pickleshare
diff --git a/pkgs/development/python-modules/joblib/default.nix b/pkgs/development/python-modules/joblib/default.nix
index 65d1f4f682202..17896a58469c4 100644
--- a/pkgs/development/python-modules/joblib/default.nix
+++ b/pkgs/development/python-modules/joblib/default.nix
@@ -1,11 +1,8 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, nose
 , sphinx
 , numpydoc
-, isPy3k
-, stdenv
 , pytest
 }:
 
diff --git a/pkgs/development/python-modules/jsmin/default.nix b/pkgs/development/python-modules/jsmin/default.nix
index 3a6d69cc829fb..f11fccb086bcd 100644
--- a/pkgs/development/python-modules/jsmin/default.nix
+++ b/pkgs/development/python-modules/jsmin/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "jsmin";
diff --git a/pkgs/development/python-modules/jupyter_core/default.nix b/pkgs/development/python-modules/jupyter_core/default.nix
index c934d24dab7b2..a6a955507a792 100644
--- a/pkgs/development/python-modules/jupyter_core/default.nix
+++ b/pkgs/development/python-modules/jupyter_core/default.nix
@@ -1,5 +1,4 @@
 { lib
-, python
 , buildPythonPackage
 , fetchPypi
 , ipython
diff --git a/pkgs/development/python-modules/jupyterhub/default.nix b/pkgs/development/python-modules/jupyterhub/default.nix
index dbd2e36b7b840..8598654e2060b 100644
--- a/pkgs/development/python-modules/jupyterhub/default.nix
+++ b/pkgs/development/python-modules/jupyterhub/default.nix
@@ -1,5 +1,4 @@
 { lib
-, python
 , buildPythonPackage
 , fetchPypi
 , fetchzip
@@ -13,7 +12,6 @@
 , traitlets
 , requests
 , pythonOlder
-, nodejs-8_x
 , nodePackages
 }:
 
diff --git a/pkgs/development/python-modules/kaitaistruct/default.nix b/pkgs/development/python-modules/kaitaistruct/default.nix
index 19169e88b125a..a1e795421b075 100644
--- a/pkgs/development/python-modules/kaitaistruct/default.nix
+++ b/pkgs/development/python-modules/kaitaistruct/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, kaitaistruct, buildPythonPackage, fetchPypi }:
+{ stdenv, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "kaitaistruct";
diff --git a/pkgs/development/python-modules/keras/default.nix b/pkgs/development/python-modules/keras/default.nix
index be59a112be746..3b221238f3af4 100644
--- a/pkgs/development/python-modules/keras/default.nix
+++ b/pkgs/development/python-modules/keras/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi
+{ stdenv, buildPythonPackage, fetchPypi
 , pytest, pytestcov, pytestpep8, pytest_xdist
 , six, numpy, scipy, pyyaml, h5py
 }:
diff --git a/pkgs/development/python-modules/ldap/default.nix b/pkgs/development/python-modules/ldap/default.nix
index 95672600a30ae..17a6b158d3f22 100644
--- a/pkgs/development/python-modules/ldap/default.nix
+++ b/pkgs/development/python-modules/ldap/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , pyasn1, pyasn1-modules, pytest
 , openldap, cyrus_sasl }:
 
diff --git a/pkgs/development/python-modules/ldappool/default.nix b/pkgs/development/python-modules/ldappool/default.nix
index 58ca72a3dc984..02d10b832ff2c 100644
--- a/pkgs/development/python-modules/ldappool/default.nix
+++ b/pkgs/development/python-modules/ldappool/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, isPy3k
+{ lib, buildPythonPackage, fetchPypi
 , pbr, ldap, fixtures, testresources, testtools }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/libarcus/default.nix b/pkgs/development/python-modules/libarcus/default.nix
index 2fc66e810d061..fc58c6ca6a1dc 100644
--- a/pkgs/development/python-modules/libarcus/default.nix
+++ b/pkgs/development/python-modules/libarcus/default.nix
@@ -1,5 +1,5 @@
-{ stdenv, lib, buildPythonPackage, fetchFromGitHub
-, python, cmake, sip, protobuf, pythonOlder }:
+{ stdenv, buildPythonPackage, fetchFromGitHub
+, cmake, sip, protobuf, pythonOlder }:
 
 buildPythonPackage rec {
   pname = "libarcus";
diff --git a/pkgs/development/python-modules/libgpuarray/default.nix b/pkgs/development/python-modules/libgpuarray/default.nix
index 14e83584678ce..ef01fde2daa73 100644
--- a/pkgs/development/python-modules/libgpuarray/default.nix
+++ b/pkgs/development/python-modules/libgpuarray/default.nix
@@ -8,7 +8,6 @@
 , six
 , nose
 , Mako
-, python
 , cudaSupport ? false, cudatoolkit , nvidia_x11
 , openclSupport ? true, ocl-icd, clblas
 }:
diff --git a/pkgs/development/python-modules/libversion/default.nix b/pkgs/development/python-modules/libversion/default.nix
index cf0a1a865a19f..75e55944e987d 100644
--- a/pkgs/development/python-modules/libversion/default.nix
+++ b/pkgs/development/python-modules/libversion/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, python, pkgconfig, libversion, pythonOlder }:
+{ stdenv, buildPythonPackage, fetchPypi, pkgconfig, libversion, pythonOlder }:
 
 buildPythonPackage rec {
   pname = "libversion";
diff --git a/pkgs/development/python-modules/libvirt/default.nix b/pkgs/development/python-modules/libvirt/default.nix
index a99d4542ba5aa..26b42020fc340 100644
--- a/pkgs/development/python-modules/libvirt/default.nix
+++ b/pkgs/development/python-modules/libvirt/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchgit, python, pkgconfig, lxml, libvirt, nose }:
+{ stdenv, buildPythonPackage, fetchgit, pkgconfig, lxml, libvirt, nose }:
 
 buildPythonPackage rec {
   pname = "libvirt";
diff --git a/pkgs/development/python-modules/linode-api/default.nix b/pkgs/development/python-modules/linode-api/default.nix
index ad6b938c9888c..4689050ba6c70 100644
--- a/pkgs/development/python-modules/linode-api/default.nix
+++ b/pkgs/development/python-modules/linode-api/default.nix
@@ -1,7 +1,6 @@
 { stdenv,
   buildPythonPackage,
   fetchFromGitHub,
-  isPy3k,
   pythonOlder,
   lib,
   requests,
diff --git a/pkgs/development/python-modules/lmtpd/default.nix b/pkgs/development/python-modules/lmtpd/default.nix
index c9b9b4896139f..bc91139728b0e 100644
--- a/pkgs/development/python-modules/lmtpd/default.nix
+++ b/pkgs/development/python-modules/lmtpd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, fetchFromGitHub }:
+{ stdenv, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "lmtpd";
diff --git a/pkgs/development/python-modules/marionette-harness/default.nix b/pkgs/development/python-modules/marionette-harness/default.nix
index 4a96ce8ad0513..ff1a6e49b0133 100644
--- a/pkgs/development/python-modules/marionette-harness/default.nix
+++ b/pkgs/development/python-modules/marionette-harness/default.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
diff --git a/pkgs/development/python-modules/marionette-harness/manifestparser.nix b/pkgs/development/python-modules/marionette-harness/manifestparser.nix
index 5d52b52ac7f2f..7316526aa2804 100644
--- a/pkgs/development/python-modules/marionette-harness/manifestparser.nix
+++ b/pkgs/development/python-modules/marionette-harness/manifestparser.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
diff --git a/pkgs/development/python-modules/marionette-harness/marionette_driver.nix b/pkgs/development/python-modules/marionette-harness/marionette_driver.nix
index d27637874af8e..b6d761f077ce5 100644
--- a/pkgs/development/python-modules/marionette-harness/marionette_driver.nix
+++ b/pkgs/development/python-modules/marionette-harness/marionette_driver.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
diff --git a/pkgs/development/python-modules/marionette-harness/mozcrash.nix b/pkgs/development/python-modules/marionette-harness/mozcrash.nix
index ccd0eb6cc9f89..3f7710acb3c16 100644
--- a/pkgs/development/python-modules/marionette-harness/mozcrash.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozcrash.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozfile
diff --git a/pkgs/development/python-modules/marionette-harness/mozdevice.nix b/pkgs/development/python-modules/marionette-harness/mozdevice.nix
index 8569d9287ac82..491069cd87fb9 100644
--- a/pkgs/development/python-modules/marionette-harness/mozdevice.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozdevice.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , moznetwork
diff --git a/pkgs/development/python-modules/marionette-harness/mozfile.nix b/pkgs/development/python-modules/marionette-harness/mozfile.nix
index 7bd14f2d10cab..34350dd4821f8 100644
--- a/pkgs/development/python-modules/marionette-harness/mozfile.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozfile.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 }:
diff --git a/pkgs/development/python-modules/marionette-harness/mozhttpd.nix b/pkgs/development/python-modules/marionette-harness/mozhttpd.nix
index 1d1be733f9985..6862967e420f3 100644
--- a/pkgs/development/python-modules/marionette-harness/mozhttpd.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozhttpd.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , moznetwork
diff --git a/pkgs/development/python-modules/marionette-harness/mozlog.nix b/pkgs/development/python-modules/marionette-harness/mozlog.nix
index dfe91309ea400..bc4b9e914653f 100644
--- a/pkgs/development/python-modules/marionette-harness/mozlog.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozlog.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
diff --git a/pkgs/development/python-modules/marionette-harness/moznetwork.nix b/pkgs/development/python-modules/marionette-harness/moznetwork.nix
index a6561d3e07ace..3901f7c310d06 100644
--- a/pkgs/development/python-modules/marionette-harness/moznetwork.nix
+++ b/pkgs/development/python-modules/marionette-harness/moznetwork.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozlog
diff --git a/pkgs/development/python-modules/marionette-harness/mozprocess.nix b/pkgs/development/python-modules/marionette-harness/mozprocess.nix
index c1e5344326077..e8130e8038fdf 100644
--- a/pkgs/development/python-modules/marionette-harness/mozprocess.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozprocess.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozinfo
diff --git a/pkgs/development/python-modules/marionette-harness/mozprofile.nix b/pkgs/development/python-modules/marionette-harness/mozprofile.nix
index c94acdd3ba5a8..3620248904cef 100644
--- a/pkgs/development/python-modules/marionette-harness/mozprofile.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozprofile.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozlog
diff --git a/pkgs/development/python-modules/marionette-harness/mozrunner.nix b/pkgs/development/python-modules/marionette-harness/mozrunner.nix
index e9f6177cfa1bb..324c7c6c2d24e 100644
--- a/pkgs/development/python-modules/marionette-harness/mozrunner.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozrunner.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozdevice
diff --git a/pkgs/development/python-modules/marionette-harness/moztest.nix b/pkgs/development/python-modules/marionette-harness/moztest.nix
index d1c799c95dee5..2ff50e1fa92ea 100644
--- a/pkgs/development/python-modules/marionette-harness/moztest.nix
+++ b/pkgs/development/python-modules/marionette-harness/moztest.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozinfo
diff --git a/pkgs/development/python-modules/marionette-harness/mozversion.nix b/pkgs/development/python-modules/marionette-harness/mozversion.nix
index c9eb12bd52b46..dbe3cb4bc2d8b 100644
--- a/pkgs/development/python-modules/marionette-harness/mozversion.nix
+++ b/pkgs/development/python-modules/marionette-harness/mozversion.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , mozlog
diff --git a/pkgs/development/python-modules/moto/default.nix b/pkgs/development/python-modules/moto/default.nix
index e4b2bdefad206..cfb70724210ef 100644
--- a/pkgs/development/python-modules/moto/default.nix
+++ b/pkgs/development/python-modules/moto/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, jinja2, werkzeug, flask
+{ buildPythonPackage, fetchPypi, jinja2, werkzeug, flask
 , requests, pytz, backports_tempfile, cookies, jsondiff, botocore, aws-xray-sdk, docker, responses
 , six, boto, httpretty, xmltodict, nose, sure, boto3, freezegun, dateutil, mock, pyaml }:
 
diff --git a/pkgs/development/python-modules/mrbob/default.nix b/pkgs/development/python-modules/mrbob/default.nix
index 3f974872b9594..6dbfa1fae6035 100644
--- a/pkgs/development/python-modules/mrbob/default.nix
+++ b/pkgs/development/python-modules/mrbob/default.nix
@@ -1,5 +1,5 @@
 { buildPythonPackage, stdenv, glibcLocales, mock, nose, isPy3k, argparse, jinja2, six
-, fetchPypi, lib
+, fetchPypi
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/murmurhash/default.nix b/pkgs/development/python-modules/murmurhash/default.nix
index f689bc2ff49d8..a3a9096a335c6 100644
--- a/pkgs/development/python-modules/murmurhash/default.nix
+++ b/pkgs/development/python-modules/murmurhash/default.nix
@@ -2,7 +2,6 @@
 , buildPythonPackage
 , fetchPypi
 , cython
-, python
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/mysqlclient/default.nix b/pkgs/development/python-modules/mysqlclient/default.nix
index 0be0f892d731b..9aabd6d94e2ca 100644
--- a/pkgs/development/python-modules/mysqlclient/default.nix
+++ b/pkgs/development/python-modules/mysqlclient/default.nix
@@ -1,11 +1,11 @@
-{ stdenv, buildPythonPackage, fetchPypi, libmysql }:
+{ stdenv, buildPythonPackage, fetchPypi, mysql }:
 
 buildPythonPackage rec {
   pname = "mysqlclient";
   version = "1.3.12";
 
   buildInputs = [
-    libmysql
+    mysql.connector-c
   ];
 
   # Tests need a MySQL database
diff --git a/pkgs/development/python-modules/nbconvert/default.nix b/pkgs/development/python-modules/nbconvert/default.nix
index dfa87c843ff25..b167b7f427c1f 100644
--- a/pkgs/development/python-modules/nbconvert/default.nix
+++ b/pkgs/development/python-modules/nbconvert/default.nix
@@ -13,7 +13,6 @@
 , testpath
 , jupyter_core
 , nbformat
-, nbconvert
 , ipykernel
 , pandocfilters
 , tornado
diff --git a/pkgs/development/python-modules/ncclient/default.nix b/pkgs/development/python-modules/ncclient/default.nix
index 4cc5769d8d836..27fc7d11e7519 100644
--- a/pkgs/development/python-modules/ncclient/default.nix
+++ b/pkgs/development/python-modules/ncclient/default.nix
@@ -5,7 +5,6 @@
 , lxml
 , libxml2
 , libxslt
-, pytest
 , nose
 , rednose
 }:
diff --git a/pkgs/development/python-modules/netdisco/default.nix b/pkgs/development/python-modules/netdisco/default.nix
index af7e4dde59e3b..e60233c3590e4 100644
--- a/pkgs/development/python-modules/netdisco/default.nix
+++ b/pkgs/development/python-modules/netdisco/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, isPy3k, fetchFromGitHub, fetchpatch, requests, zeroconf, netifaces, pytest }:
+{ stdenv, buildPythonPackage, isPy3k, fetchFromGitHub, requests, zeroconf, netifaces, pytest }:
 
 buildPythonPackage rec {
   pname = "netdisco";
diff --git a/pkgs/development/python-modules/nltk/default.nix b/pkgs/development/python-modules/nltk/default.nix
index 9645e54f7ec1d..56edc44bce71f 100644
--- a/pkgs/development/python-modules/nltk/default.nix
+++ b/pkgs/development/python-modules/nltk/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, buildPythonPackage, isPy33, lib, six, pythonAtLeast, pythonOlder }:
+{ fetchurl, buildPythonPackage, lib, six, pythonAtLeast, pythonOlder }:
 
 buildPythonPackage rec {
   version = "3.2.5";
diff --git a/pkgs/development/python-modules/numpy/default.nix b/pkgs/development/python-modules/numpy/default.nix
index d6531eda2ef12..d9e884dabbe0f 100644
--- a/pkgs/development/python-modules/numpy/default.nix
+++ b/pkgs/development/python-modules/numpy/default.nix
@@ -1,4 +1,4 @@
-{lib, fetchPypi, python, buildPythonPackage, isPy27, isPyPy, gfortran, nose, blas, hostPlatform }:
+{lib, fetchPypi, python, buildPythonPackage, isPyPy, gfortran, nose, blas, hostPlatform }:
 
 buildPythonPackage rec {
   pname = "numpy";
diff --git a/pkgs/development/python-modules/ovh/default.nix b/pkgs/development/python-modules/ovh/default.nix
index 3f37940ed8aeb..474609220cfae 100644
--- a/pkgs/development/python-modules/ovh/default.nix
+++ b/pkgs/development/python-modules/ovh/default.nix
@@ -1,9 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, requests
-, nose
-, mock
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pandas/0.17.1.nix b/pkgs/development/python-modules/pandas/0.17.1.nix
index 2c0a2c44f6eb2..c481aa0dfea70 100644
--- a/pkgs/development/python-modules/pandas/0.17.1.nix
+++ b/pkgs/development/python-modules/pandas/0.17.1.nix
@@ -1,8 +1,6 @@
 { buildPythonPackage
 , fetchPypi
-, python
 , stdenv
-, fetchurl
 , pytest
 , glibcLocales
 , cython
@@ -23,7 +21,7 @@
 }:
 
 let
-  inherit (stdenv.lib) optional optionalString concatStringsSep;
+  inherit (stdenv.lib) optional optionalString;
   inherit (stdenv) isDarwin;
 in buildPythonPackage rec {
   pname = "pandas";
diff --git a/pkgs/development/python-modules/pandas/default.nix b/pkgs/development/python-modules/pandas/default.nix
index 08fdddb73467e..ef07f2a36e32a 100644
--- a/pkgs/development/python-modules/pandas/default.nix
+++ b/pkgs/development/python-modules/pandas/default.nix
@@ -2,7 +2,6 @@
 , fetchPypi
 , python
 , stdenv
-, fetchurl
 , pytest
 , glibcLocales
 , cython
@@ -24,7 +23,7 @@
 }:
 
 let
-  inherit (stdenv.lib) optional optionals optionalString concatStringsSep;
+  inherit (stdenv.lib) optional optionals optionalString;
   inherit (stdenv) isDarwin;
 
 in buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/parse-type/default.nix b/pkgs/development/python-modules/parse-type/default.nix
index ac150af4b7824..34573626bacac 100644
--- a/pkgs/development/python-modules/parse-type/default.nix
+++ b/pkgs/development/python-modules/parse-type/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, fetchpatch
+{ stdenv, fetchPypi
 , buildPythonPackage, pythonOlder
 , pytest, pytestrunner
 , parse, six, enum34
diff --git a/pkgs/development/python-modules/parse/default.nix b/pkgs/development/python-modules/parse/default.nix
index 18cc23338bf69..4092f5e1c4f35 100644
--- a/pkgs/development/python-modules/parse/default.nix
+++ b/pkgs/development/python-modules/parse/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, fetchpatch
+{ stdenv, fetchPypi
 , buildPythonPackage, python
 }:
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/passlib/default.nix b/pkgs/development/python-modules/passlib/default.nix
index 165de7bd2baf4..24539c7bbcef5 100644
--- a/pkgs/development/python-modules/passlib/default.nix
+++ b/pkgs/development/python-modules/passlib/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , nose
 , bcrypt
diff --git a/pkgs/development/python-modules/pelican/default.nix b/pkgs/development/python-modules/pelican/default.nix
index 2d1f707a8ebd8..1ee93c753d80d 100644
--- a/pkgs/development/python-modules/pelican/default.nix
+++ b/pkgs/development/python-modules/pelican/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchFromGitHub
-, glibcLocales, pandoc, git
+, glibcLocales, git
 , mock, nose, markdown, lxml, typogrify
 , jinja2, pygments, docutils, pytz, unidecode, six, dateutil, feedgenerator
 , blinker, pillow, beautifulsoup4, markupsafe }:
diff --git a/pkgs/development/python-modules/persistent/default.nix b/pkgs/development/python-modules/persistent/default.nix
index b861797c4a8f2..4f2e7f3ca8455 100644
--- a/pkgs/development/python-modules/persistent/default.nix
+++ b/pkgs/development/python-modules/persistent/default.nix
@@ -1,7 +1,6 @@
 { buildPythonPackage
 , fetchPypi
 , zope_interface
-, pkgs
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/plaid-python/default.nix b/pkgs/development/python-modules/plaid-python/default.nix
index 3676c676cc60e..afbb5e2b567cd 100644
--- a/pkgs/development/python-modules/plaid-python/default.nix
+++ b/pkgs/development/python-modules/plaid-python/default.nix
@@ -1,12 +1,12 @@
 { lib, buildPythonPackage, fetchPypi, requests, pytest }:
 
 buildPythonPackage rec {
-  version = "2.3.0";
+  version = "2.3.3";
   pname = "plaid-python";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0kp0crzjginmga6qvwwppar5b2pbdvwryf6vdpxgx7kkwzv33w97";
+    sha256 = "0jblc0bvzcns1dmsax6n0cvdg8867hm7snvdxa2l7v305h6gssjw";
   };
 
   checkInputs = [ pytest ];
diff --git a/pkgs/development/python-modules/plaster-pastedeploy/default.nix b/pkgs/development/python-modules/plaster-pastedeploy/default.nix
index 3f90e6b2da7d4..5675be3239739 100644
--- a/pkgs/development/python-modules/plaster-pastedeploy/default.nix
+++ b/pkgs/development/python-modules/plaster-pastedeploy/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi, python
+{ buildPythonPackage, fetchPypi
 , plaster, PasteDeploy
 , pytest, pytestcov
 }:
diff --git a/pkgs/development/python-modules/plaster/default.nix b/pkgs/development/python-modules/plaster/default.nix
index 8c3de8bd0351b..82aaebb100393 100644
--- a/pkgs/development/python-modules/plaster/default.nix
+++ b/pkgs/development/python-modules/plaster/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi, python
+{ buildPythonPackage, fetchPypi
 , pytest, pytestcov
 }:
 
diff --git a/pkgs/development/python-modules/pluggy/default.nix b/pkgs/development/python-modules/pluggy/default.nix
index 0fbfa5108c1b5..2a6996c628e6b 100644
--- a/pkgs/development/python-modules/pluggy/default.nix
+++ b/pkgs/development/python-modules/pluggy/default.nix
@@ -1,7 +1,6 @@
 { buildPythonPackage
 , lib
 , fetchPypi
-, pytest
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/plumbum/default.nix b/pkgs/development/python-modules/plumbum/default.nix
index 5269ecd5d8b40..2c6eb7e5fbf7f 100644
--- a/pkgs/development/python-modules/plumbum/default.nix
+++ b/pkgs/development/python-modules/plumbum/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , pytest
 }:
diff --git a/pkgs/development/python-modules/poppler-qt5/default.nix b/pkgs/development/python-modules/poppler-qt5/default.nix
index 0ae689034a3ad..2b00a007f90b3 100644
--- a/pkgs/development/python-modules/poppler-qt5/default.nix
+++ b/pkgs/development/python-modules/poppler-qt5/default.nix
@@ -1,5 +1,5 @@
 { buildPythonPackage, fetchPypi, stdenv, sip, qtbase, pyqt5, poppler, pkgconfig, fetchpatch
-, python, substituteAll
+, substituteAll
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/powerline/default.nix b/pkgs/development/python-modules/powerline/default.nix
index f51c6989c011b..841e003bc897c 100644
--- a/pkgs/development/python-modules/powerline/default.nix
+++ b/pkgs/development/python-modules/powerline/default.nix
@@ -1,9 +1,6 @@
 { lib
 , fetchurl
 , buildPythonPackage
-, git
-, mercurial
-, bazaar
 , psutil
 , pygit2
 }:
diff --git a/pkgs/development/python-modules/progressbar2/default.nix b/pkgs/development/python-modules/progressbar2/default.nix
index 212c06cc9421f..18fb14c3aa9a5 100644
--- a/pkgs/development/python-modules/progressbar2/default.nix
+++ b/pkgs/development/python-modules/progressbar2/default.nix
@@ -2,7 +2,6 @@
 , python
 , buildPythonPackage
 , fetchFromGitHub
-, isPy3k
 , pytest
 , python-utils
 , sphinx
diff --git a/pkgs/development/python-modules/prometheus_client/default.nix b/pkgs/development/python-modules/prometheus_client/default.nix
index eaf353af08231..f6b2bfa939c62 100644
--- a/pkgs/development/python-modules/prometheus_client/default.nix
+++ b/pkgs/development/python-modules/prometheus_client/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, pytest }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "prometheus_client";
diff --git a/pkgs/development/python-modules/psutil/default.nix b/pkgs/development/python-modules/psutil/default.nix
index 7fbdfb7c33eb3..84fe2f6955458 100644
--- a/pkgs/development/python-modules/psutil/default.nix
+++ b/pkgs/development/python-modules/psutil/default.nix
@@ -2,7 +2,6 @@
 , buildPythonPackage
 , fetchPypi
 , darwin
-, mock
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pyGithub/default.nix b/pkgs/development/python-modules/pyGithub/default.nix
index 6adc1e7ec04ca..be409e348ea3b 100644
--- a/pkgs/development/python-modules/pyGithub/default.nix
+++ b/pkgs/development/python-modules/pyGithub/default.nix
@@ -1,5 +1,4 @@
 { stdenv, fetchFromGitHub
-, cacert
 , buildPythonPackage, python-jose, pyjwt }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pyaml/default.nix b/pkgs/development/python-modules/pyaml/default.nix
index 5fd1be7c15cc2..fd1866d22f434 100644
--- a/pkgs/development/python-modules/pyaml/default.nix
+++ b/pkgs/development/python-modules/pyaml/default.nix
@@ -3,7 +3,6 @@
 , fetchPypi
 , pyyaml
 , unidecode
-, python
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pycaption/default.nix b/pkgs/development/python-modules/pycaption/default.nix
index 845630e514fac..d4ed6088409b0 100644
--- a/pkgs/development/python-modules/pycaption/default.nix
+++ b/pkgs/development/python-modules/pycaption/default.nix
@@ -1,5 +1,5 @@
 { lib, fetchpatch
-, buildPythonPackage, fetchPypi, isPy3k, pythonOlder
+, buildPythonPackage, fetchPypi, isPy3k
 , beautifulsoup4, lxml, cssutils, future, enum34, six
 }:
 
diff --git a/pkgs/development/python-modules/pycollada/default.nix b/pkgs/development/python-modules/pycollada/default.nix
index b074f9f4934ea..23ed4917cc58b 100644
--- a/pkgs/development/python-modules/pycollada/default.nix
+++ b/pkgs/development/python-modules/pycollada/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, numpy, isPy3k, dateutil }:
+{ stdenv, fetchPypi, buildPythonPackage, numpy, dateutil }:
 
 buildPythonPackage rec {
   pname = "pycollada";
diff --git a/pkgs/development/python-modules/pycrypto/default.nix b/pkgs/development/python-modules/pycrypto/default.nix
index af975e333f0f2..e7858888d3610 100644
--- a/pkgs/development/python-modules/pycrypto/default.nix
+++ b/pkgs/development/python-modules/pycrypto/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, buildPythonPackage, pycryptodome }:
+{ buildPythonPackage, pycryptodome }:
 
 # This is a dummy package providing the drop-in replacement pycryptodome.
 # https://github.com/NixOS/nixpkgs/issues/21671
diff --git a/pkgs/development/python-modules/pycryptodome/default.nix b/pkgs/development/python-modules/pycryptodome/default.nix
index b4ef42cb22abb..35041f8447ba9 100644
--- a/pkgs/development/python-modules/pycryptodome/default.nix
+++ b/pkgs/development/python-modules/pycryptodome/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, python, buildPythonPackage, gmp }:
+{ stdenv, fetchPypi, buildPythonPackage }:
 
 buildPythonPackage rec {
   version = "3.6.2";
diff --git a/pkgs/development/python-modules/pygame/default.nix b/pkgs/development/python-modules/pygame/default.nix
index 5a4a81f13accc..b6c9ae5e8ba61 100644
--- a/pkgs/development/python-modules/pygame/default.nix
+++ b/pkgs/development/python-modules/pygame/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, buildPythonPackage, python, smpeg, libX11
+{ stdenv, lib, fetchurl, buildPythonPackage, python, libX11
 , SDL, SDL_image, SDL_mixer, SDL_ttf, libpng, libjpeg, portmidi, freetype
 }:
 
diff --git a/pkgs/development/python-modules/pygame_sdl2/default.nix b/pkgs/development/python-modules/pygame_sdl2/default.nix
index 08c266da6963a..916bf7f692d21 100644
--- a/pkgs/development/python-modules/pygame_sdl2/default.nix
+++ b/pkgs/development/python-modules/pygame_sdl2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, pkgs, buildPythonPackage, fetchurl, isPy27, fetchpatch
+{ stdenv, buildPythonPackage, fetchurl, isPy27, fetchpatch
 , cython, SDL2, SDL2_image, SDL2_ttf, SDL2_mixer, libjpeg, libpng }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pygccxml/default.nix b/pkgs/development/python-modules/pygccxml/default.nix
index 5271677dc1eab..d4c46d6b83597 100644
--- a/pkgs/development/python-modules/pygccxml/default.nix
+++ b/pkgs/development/python-modules/pygccxml/default.nix
@@ -1,5 +1,5 @@
 { stdenv, castxml, fetchFromGitHub, buildPythonPackage,
-llvmPackages, clang }:
+llvmPackages }:
 buildPythonPackage rec {
   pname = "pygccxml";
   version = "1.9.1";
diff --git a/pkgs/development/python-modules/pygobject/3.nix b/pkgs/development/python-modules/pygobject/3.nix
index 524fb4af61c59..c6264f08de868 100644
--- a/pkgs/development/python-modules/pygobject/3.nix
+++ b/pkgs/development/python-modules/pygobject/3.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, buildPythonPackage, python, pkgconfig, glib, gobjectIntrospection, pycairo, cairo, which, ncurses}:
+{ stdenv, fetchurl, buildPythonPackage, pkgconfig, glib, gobjectIntrospection, pycairo, cairo, which, ncurses}:
 
 buildPythonPackage rec {
   major = "3.26";
diff --git a/pkgs/development/python-modules/pymc3/default.nix b/pkgs/development/python-modules/pymc3/default.nix
index a0dd6113b750c..5af6ef9922894 100644
--- a/pkgs/development/python-modules/pymc3/default.nix
+++ b/pkgs/development/python-modules/pymc3/default.nix
@@ -12,7 +12,6 @@
 , pytest
 , nose
 , parameterized
-, matplotlib
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pymvglive/default.nix b/pkgs/development/python-modules/pymvglive/default.nix
index 1263c498a46b3..3b7011fa74821 100644
--- a/pkgs/development/python-modules/pymvglive/default.nix
+++ b/pkgs/development/python-modules/pymvglive/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, requests }:
+{ lib, buildPythonPackage, fetchPypi, requests }:
 
 buildPythonPackage rec {
   pname = "PyMVGLive";
diff --git a/pkgs/development/python-modules/pynacl/default.nix b/pkgs/development/python-modules/pynacl/default.nix
index bceb2b50cc596..463cd8044e1da 100644
--- a/pkgs/development/python-modules/pynacl/default.nix
+++ b/pkgs/development/python-modules/pynacl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchFromGitHub, pytest, coverage, libsodium, cffi, six, hypothesis}:
+{ stdenv, buildPythonPackage, fetchFromGitHub, pytest, libsodium, cffi, six, hypothesis}:
 
 buildPythonPackage rec {
   pname = "pynacl";
diff --git a/pkgs/development/python-modules/pyogg/default.nix b/pkgs/development/python-modules/pyogg/default.nix
index 08fc87127959e..09b7f38613030 100644
--- a/pkgs/development/python-modules/pyogg/default.nix
+++ b/pkgs/development/python-modules/pyogg/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchPypi, buildPythonPackage, fetchurl, libvorbis, flac, libogg, libopus, opusfile }:
+{ stdenv, lib, fetchPypi, buildPythonPackage, libvorbis, flac, libogg, libopus, opusfile }:
 
 buildPythonPackage rec {
     pname = "PyOgg";
diff --git a/pkgs/development/python-modules/pyowm/default.nix b/pkgs/development/python-modules/pyowm/default.nix
index 8175ef2b1725b..55f96416efd47 100644
--- a/pkgs/development/python-modules/pyowm/default.nix
+++ b/pkgs/development/python-modules/pyowm/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, requests }:
+{ lib, buildPythonPackage, fetchPypi, requests }:
 
 buildPythonPackage rec {
   pname = "pyowm";
diff --git a/pkgs/development/python-modules/pyqt/4.x.nix b/pkgs/development/python-modules/pyqt/4.x.nix
index 0efb77d27b3ea..a747d42e418aa 100644
--- a/pkgs/development/python-modules/pyqt/4.x.nix
+++ b/pkgs/development/python-modules/pyqt/4.x.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pythonPackages, qt4, pkgconfig, lndir, dbus_libs, makeWrapper }:
+{ stdenv, fetchurl, pythonPackages, qt4, pkgconfig, lndir, dbus, makeWrapper }:
 
 let
   pname = "PyQt-x11-gpl";
@@ -42,7 +42,7 @@ in buildPythonPackage {
   '';
 
   nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ makeWrapper qt4 lndir dbus_libs ];
+  buildInputs = [ makeWrapper qt4 lndir dbus ];
 
   propagatedBuildInputs = [ sip ];
 
diff --git a/pkgs/development/python-modules/pyqt/5.x.nix b/pkgs/development/python-modules/pyqt/5.x.nix
index b669c14564160..6a3e3e66e2c9d 100644
--- a/pkgs/development/python-modules/pyqt/5.x.nix
+++ b/pkgs/development/python-modules/pyqt/5.x.nix
@@ -1,5 +1,5 @@
-{ lib, fetchurl, fetchpatch, pythonPackages, pkgconfig, makeWrapper
-, qmake, lndir, qtbase, qtsvg, qtwebkit, qtwebengine, dbus_libs
+{ lib, fetchurl, fetchpatch, pythonPackages, pkgconfig
+, qmake, lndir, qtbase, qtsvg, qtwebkit, qtwebengine, dbus
 , withWebSockets ? false, qtwebsockets
 , withConnectivity ? false, qtconnectivity
 }:
@@ -32,7 +32,7 @@ in buildPythonPackage {
 
   nativeBuildInputs = [ pkgconfig qmake lndir ];
 
-  buildInputs = [ dbus_libs ];
+  buildInputs = [ dbus ];
 
   propagatedBuildInputs = [
     sip qtbase qtsvg qtwebkit qtwebengine
@@ -53,7 +53,7 @@ in buildPythonPackage {
 
     ${python.executable} configure.py  -w \
       --confirm-license \
-      --dbus=${dbus_libs.dev}/include/dbus-1.0 \
+      --dbus=${dbus.dev}/include/dbus-1.0 \
       --no-qml-plugin \
       --bindir=$out/bin \
       --destdir=$out/${python.sitePackages} \
diff --git a/pkgs/development/python-modules/pysc2/default.nix b/pkgs/development/python-modules/pysc2/default.nix
index 89799988fa1f1..280981ab2c246 100644
--- a/pkgs/development/python-modules/pysc2/default.nix
+++ b/pkgs/development/python-modules/pysc2/default.nix
@@ -4,7 +4,6 @@
 , absl-py
 , enum34
 , future
-, futures
 , mock
 , mpyq
 , numpy
diff --git a/pkgs/development/python-modules/pysdl2/default.nix b/pkgs/development/python-modules/pysdl2/default.nix
index 6681b1b199add..1ffc546cfa1e2 100644
--- a/pkgs/development/python-modules/pysdl2/default.nix
+++ b/pkgs/development/python-modules/pysdl2/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchPypi, buildPythonPackage, fetchurl, SDL2, SDL2_ttf, SDL2_image, SDL2_gfx, SDL2_mixer, pyopengl }:
+{ stdenv, lib, fetchPypi, buildPythonPackage, SDL2, SDL2_ttf, SDL2_image, SDL2_gfx, SDL2_mixer }:
 
 buildPythonPackage rec {
   pname = "PySDL2";
diff --git a/pkgs/development/python-modules/pyside/default.nix b/pkgs/development/python-modules/pyside/default.nix
index 288b141d32e82..ab46c726f6c70 100644
--- a/pkgs/development/python-modules/pyside/default.nix
+++ b/pkgs/development/python-modules/pyside/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchurl, cmake, python, buildPythonPackage, pysideGeneratorrunner, pysideShiboken, qt4 }:
+{ lib, fetchurl, cmake, buildPythonPackage, pysideGeneratorrunner, pysideShiboken, qt4 }:
 
 # This derivation provides a Python module and should therefore be called via `python-packages.nix`.
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/pytest-cram/default.nix b/pkgs/development/python-modules/pytest-cram/default.nix
index 4555479af43eb..3ca4f832c8cfc 100644
--- a/pkgs/development/python-modules/pytest-cram/default.nix
+++ b/pkgs/development/python-modules/pytest-cram/default.nix
@@ -1,4 +1,4 @@
-{lib, buildPythonPackage, fetchPypi, pytest, cram, bash, writeText}:
+{lib, buildPythonPackage, fetchPypi, pytest, cram, bash}:
 
 buildPythonPackage rec {
   version = "0.2.0";
diff --git a/pkgs/development/python-modules/pytest-flake8/default.nix b/pkgs/development/python-modules/pytest-flake8/default.nix
index c2d205f2833c3..101594750fd5c 100644
--- a/pkgs/development/python-modules/pytest-flake8/default.nix
+++ b/pkgs/development/python-modules/pytest-flake8/default.nix
@@ -1,4 +1,4 @@
-{lib, buildPythonPackage, fetchPypi, fetchpatch, pytest, flake8}:
+{lib, buildPythonPackage, fetchPypi, pytest, flake8}:
 
 buildPythonPackage rec {
   pname = "pytest-flake8";
diff --git a/pkgs/development/python-modules/pytest-mock/default.nix b/pkgs/development/python-modules/pytest-mock/default.nix
index c12d4b8add03d..163063ae57fc0 100644
--- a/pkgs/development/python-modules/pytest-mock/default.nix
+++ b/pkgs/development/python-modules/pytest-mock/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, fetchpatch, isPy3k, pytest, mock, setuptools_scm }:
+{ lib, buildPythonPackage, fetchPypi, isPy3k, pytest, mock, setuptools_scm }:
 
 buildPythonPackage rec {
   pname = "pytest-mock";
diff --git a/pkgs/development/python-modules/pytest-xdist/default.nix b/pkgs/development/python-modules/pytest-xdist/default.nix
index 38d34a958545f..84f337e1b83aa 100644
--- a/pkgs/development/python-modules/pytest-xdist/default.nix
+++ b/pkgs/development/python-modules/pytest-xdist/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, isPy3k, execnet, pytest, setuptools_scm, pytest-forked }:
+{ stdenv, fetchPypi, buildPythonPackage, execnet, pytest, setuptools_scm, pytest-forked }:
 
 buildPythonPackage rec {
   pname = "pytest-xdist";
diff --git a/pkgs/development/python-modules/python-oauth2/default.nix b/pkgs/development/python-modules/python-oauth2/default.nix
index f4d87dc035c1a..e8c71bff18b2d 100644
--- a/pkgs/development/python-modules/python-oauth2/default.nix
+++ b/pkgs/development/python-modules/python-oauth2/default.nix
@@ -1,5 +1,4 @@
 { lib
-, python
 , buildPythonPackage
 , fetchPypi
 }:
diff --git a/pkgs/development/python-modules/pytorch/default.nix b/pkgs/development/python-modules/pytorch/default.nix
index 18162d105acfa..962ebbecbaaa4 100644
--- a/pkgs/development/python-modules/pytorch/default.nix
+++ b/pkgs/development/python-modules/pytorch/default.nix
@@ -1,7 +1,7 @@
 { buildPythonPackage, pythonOlder,
   cudaSupport ? false, cudatoolkit ? null, cudnn ? null,
-  fetchFromGitHub, fetchpatch, lib, numpy, pyyaml, cffi, typing, cmake,
-  stdenv, linkFarm, symlinkJoin,
+  fetchFromGitHub, lib, numpy, pyyaml, cffi, typing, cmake,
+  linkFarm, symlinkJoin,
   utillinux, which }:
 
 assert cudnn == null || cudatoolkit != null;
diff --git a/pkgs/development/python-modules/pywavelets/default.nix b/pkgs/development/python-modules/pywavelets/default.nix
new file mode 100644
index 0000000000000..c072b661cc42a
--- /dev/null
+++ b/pkgs/development/python-modules/pywavelets/default.nix
@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, cython
+, nose
+, pytest
+, numpy
+}:
+
+buildPythonPackage rec {
+  pname = "PyWavelets";
+  version = "0.5.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ce36e2f0648ea1781490b09515363f1f64446b0eac524603e5db5e180113bed9";
+  };
+
+  checkInputs = [ nose pytest ];
+
+  buildInputs = [ cython ];
+
+  propagatedBuildInputs = [ numpy ];
+
+  # Somehow nosetests doesn't run the tests, so let's use pytest instead
+  checkPhase = ''
+    py.test pywt/tests
+  '';
+
+  meta = {
+    description = "Wavelet transform module";
+    homepage = https://github.com/PyWavelets/pywt;
+    license = lib.licenses.mit;
+  };
+
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/pywbem/default.nix b/pkgs/development/python-modules/pywbem/default.nix
index d09a9bbd6d80d..159e0ce15fb42 100644
--- a/pkgs/development/python-modules/pywbem/default.nix
+++ b/pkgs/development/python-modules/pywbem/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchFromGitHub, fetchpatch, libxml2
+{ stdenv, buildPythonPackage, fetchFromGitHub, libxml2
 , m2crypto, ply, pyyaml, six
 , httpretty, lxml, mock, pytest, requests
 }:
diff --git a/pkgs/development/python-modules/pyxml/default.nix b/pkgs/development/python-modules/pyxml/default.nix
index 646308feece4a..5a55c1f47bb2e 100644
--- a/pkgs/development/python-modules/pyxml/default.nix
+++ b/pkgs/development/python-modules/pyxml/default.nix
@@ -1,4 +1,4 @@
-{lib, fetchurl, python, buildPythonPackage, makeWrapper}:
+{fetchurl, python, buildPythonPackage, makeWrapper}:
 
 buildPythonPackage rec {
   pname = "PyXML";
diff --git a/pkgs/development/python-modules/pyzmq/default.nix b/pkgs/development/python-modules/pyzmq/default.nix
index 26107ea3c4af2..4de7777fa8b91 100644
--- a/pkgs/development/python-modules/pyzmq/default.nix
+++ b/pkgs/development/python-modules/pyzmq/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , pytest
 , tornado
diff --git a/pkgs/development/python-modules/qasm2image/default.nix b/pkgs/development/python-modules/qasm2image/default.nix
index 174e0871ca2f0..5f7cded86fda9 100644
--- a/pkgs/development/python-modules/qasm2image/default.nix
+++ b/pkgs/development/python-modules/qasm2image/default.nix
@@ -12,13 +12,13 @@
 
 buildPythonPackage rec {
   pname = "qasm2image";
-  version = "0.5.0";
+  version = "0.7.0";
 
   src = fetchFromGitHub {
     owner = "nelimeee";
     repo = "qasm2image";
-    rev = "7f3c3e4d1701b8b284ef0352aa3a47722ebbbcaa";
-    sha256 = "129xlpwp36h2czzw1wcl8df2864zg3if2gaad1v18ah1cf68b0f3";
+    rev = "57a640621bbbc74244f07e2e068a26411b0d9b24";
+    sha256 = "1ha5vfl4jfwcwbipsq07xlknkrvx79z5bwbzndybclyk9pa69dlz";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/qiskit/default.nix b/pkgs/development/python-modules/qiskit/default.nix
index 1eda590a864fe..0f02560c81f8d 100644
--- a/pkgs/development/python-modules/qiskit/default.nix
+++ b/pkgs/development/python-modules/qiskit/default.nix
@@ -2,8 +2,6 @@
 , isPy3k
 , buildPythonPackage
 , fetchPypi
-, fetchurl
-, python
 , numpy
 , scipy
 , sympy
@@ -21,13 +19,13 @@
 
 buildPythonPackage rec {
   pname = "qiskit";
-  version = "0.5.4";
+  version = "0.5.7";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "a86014da4ea8fe057ad3b953b44e2342f2bae3e1f9ac0d5f5d51dd659c33accf";
+    sha256 = "a5a2c6c074f8479dc83d1d599dfebf2363402a182835b8fa5742804055148b17";
   };
 
   buildInputs = [ cmake ]
@@ -50,13 +48,9 @@ buildPythonPackage rec {
   # Pypi's tarball doesn't contain tests
   doCheck = false;
 
-  patches = [
-    ./setup.py.patch
-  ];
-
   meta = {
     description = "Quantum Software Development Kit for writing quantum computing experiments, programs, and applications";
-    homepage    = https://github.com/QISKit/qiskit-sdk-py;
+    homepage    = https://github.com/QISKit/qiskit-terra;
     license     = stdenv.lib.licenses.asl20;
     maintainers = with stdenv.lib.maintainers; [
       pandaman
diff --git a/pkgs/development/python-modules/qiskit/setup.py.patch b/pkgs/development/python-modules/qiskit/setup.py.patch
deleted file mode 100644
index 9c4224ce64c68..0000000000000
--- a/pkgs/development/python-modules/qiskit/setup.py.patch
+++ /dev/null
@@ -1,21 +0,0 @@
---- a/setup.py
-+++ b/setup.py
-@@ -18,13 +18,13 @@ from setuptools.dist import Distribution
- 
- requirements = [
-     "IBMQuantumExperience>=1.9.2",
--    "matplotlib>=2.1,<2.2",
--    "networkx>=2.0,<2.1",
--    "numpy>=1.13,<1.15",
--    "ply==3.10",
--    "scipy>=0.19,<1.2",
--    "sympy>=1.0,<1.2",
--    "pillow>=4.2.1,<5.2"
-+    "matplotlib>=2.1",
-+    "networkx>=2.0",
-+    "numpy>=1.13",
-+    "ply>=3.10",
-+    "scipy>=0.19",
-+    "sympy>=1.0",
-+    "pillow>=4.2.1"
- ]
diff --git a/pkgs/development/python-modules/rdflib/default.nix b/pkgs/development/python-modules/rdflib/default.nix
index cdbba1806735f..badaf9b3787bf 100644
--- a/pkgs/development/python-modules/rdflib/default.nix
+++ b/pkgs/development/python-modules/rdflib/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , isodate
 , html5lib
diff --git a/pkgs/development/python-modules/redis/default.nix b/pkgs/development/python-modules/redis/default.nix
index de2683595e5f2..6ea233f695bb4 100644
--- a/pkgs/development/python-modules/redis/default.nix
+++ b/pkgs/development/python-modules/redis/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage }:
+{ fetchPypi, buildPythonPackage }:
 buildPythonPackage rec {
   pname = "redis";
   version = "2.10.6";
diff --git a/pkgs/development/python-modules/reportlab/default.nix b/pkgs/development/python-modules/reportlab/default.nix
index a356db74f07cf..0b3e84c351288 100644
--- a/pkgs/development/python-modules/reportlab/default.nix
+++ b/pkgs/development/python-modules/reportlab/default.nix
@@ -1,9 +1,7 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , freetype
 , pillow
-, pip
 , glibcLocales
 , python
 , isPyPy
diff --git a/pkgs/development/python-modules/requests-mock/default.nix b/pkgs/development/python-modules/requests-mock/default.nix
index 6bd294671dee9..2286d9c2dc7fb 100644
--- a/pkgs/development/python-modules/requests-mock/default.nix
+++ b/pkgs/development/python-modules/requests-mock/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, python
+{ buildPythonPackage, fetchPypi, python
 , mock, testrepository, testtools
 , requests, six }:
 
diff --git a/pkgs/development/python-modules/responses/default.nix b/pkgs/development/python-modules/responses/default.nix
index 4cc74431fc852..662045a9ce1e4 100644
--- a/pkgs/development/python-modules/responses/default.nix
+++ b/pkgs/development/python-modules/responses/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , cookies, mock, requests, six }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/rhpl/default.nix b/pkgs/development/python-modules/rhpl/default.nix
index d9c8791817655..ed0bf42ae6872 100644
--- a/pkgs/development/python-modules/rhpl/default.nix
+++ b/pkgs/development/python-modules/rhpl/default.nix
@@ -1,4 +1,4 @@
-{stdenv, buildPythonPackage, fetchurl, rpmextract, python, wirelesstools, gettext}:
+{buildPythonPackage, fetchurl, rpmextract, python, wirelesstools, gettext}:
 
 buildPythonPackage rec {
   pname = "rhpl";
diff --git a/pkgs/development/python-modules/rubymarshal/default.nix b/pkgs/development/python-modules/rubymarshal/default.nix
index 7184795639c40..d8c43c1ea8661 100644
--- a/pkgs/development/python-modules/rubymarshal/default.nix
+++ b/pkgs/development/python-modules/rubymarshal/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, python, hypothesis }:
+{ stdenv, buildPythonPackage, fetchPypi, hypothesis }:
 
 buildPythonPackage rec {
   pname = "rubymarshal";
diff --git a/pkgs/development/python-modules/salmon-mail/default.nix b/pkgs/development/python-modules/salmon-mail/default.nix
index ed358213492e4..c642039d4fea8 100644
--- a/pkgs/development/python-modules/salmon-mail/default.nix
+++ b/pkgs/development/python-modules/salmon-mail/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, pythonOlder, nose, dnspython
+{ stdenv, buildPythonPackage, fetchPypi, nose, dnspython
 ,  chardet, lmtpd, pythondaemon, six, jinja2, mock }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/scikit-image/default.nix b/pkgs/development/python-modules/scikit-image/default.nix
new file mode 100644
index 0000000000000..1a07e001caec6
--- /dev/null
+++ b/pkgs/development/python-modules/scikit-image/default.nix
@@ -0,0 +1,40 @@
+{ lib
+, fetchPypi
+, buildPythonPackage
+, cython
+, numpy
+, scipy
+, matplotlib
+, networkx
+, six
+, pillow
+, pywavelets
+, dask
+, cloudpickle
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "scikit-image";
+  version = "0.14.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "325f75eb80fbc5371136e37f323445309ca9f65b6c6f718d0d0e2189e5de1224";
+  };
+
+  buildInputs = [ cython ];
+
+  propagatedBuildInputs = [ numpy scipy matplotlib networkx six pillow pywavelets dask cloudpickle ];
+
+  checkInputs = [ pytest ];
+
+  # No tests in archive
+  doCheck = false;
+
+  meta = {
+    description = "Image processing routines for SciPy";
+    homepage = http://scikit-image.org;
+    license = lib.licenses.bsd3;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/scikitlearn/default.nix b/pkgs/development/python-modules/scikitlearn/default.nix
index edaf7cd90cc5f..39af29da81457 100644
--- a/pkgs/development/python-modules/scikitlearn/default.nix
+++ b/pkgs/development/python-modules/scikitlearn/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchpatch, fetchPypi, python
+{ stdenv, buildPythonPackage, fetchPypi, python
 , nose, pillow
 , gfortran, glibcLocales
 , numpy, scipy
diff --git a/pkgs/development/python-modules/scipy/default.nix b/pkgs/development/python-modules/scipy/default.nix
index 5e57dd3f093da..41878b19d0859 100644
--- a/pkgs/development/python-modules/scipy/default.nix
+++ b/pkgs/development/python-modules/scipy/default.nix
@@ -1,4 +1,4 @@
-{lib, fetchPypi, python, buildPythonPackage, isPyPy, gfortran, nose, pytest, numpy}:
+{lib, fetchPypi, python, buildPythonPackage, gfortran, nose, pytest, numpy}:
 
 buildPythonPackage rec {
   pname = "scipy";
diff --git a/pkgs/development/python-modules/serversyncstorage/default.nix b/pkgs/development/python-modules/serversyncstorage/default.nix
index 1cef1510ccf52..0e4b6cfa1e475 100644
--- a/pkgs/development/python-modules/serversyncstorage/default.nix
+++ b/pkgs/development/python-modules/serversyncstorage/default.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, buildPythonPackage
+{ buildPythonPackage
 , fetchgit
 , isPy27
 , testfixtures
diff --git a/pkgs/development/python-modules/simpy/default.nix b/pkgs/development/python-modules/simpy/default.nix
new file mode 100644
index 0000000000000..981b6693f7d47
--- /dev/null
+++ b/pkgs/development/python-modules/simpy/default.nix
@@ -0,0 +1,18 @@
+{ buildPythonPackage, fetchPypi, lib }:
+
+buildPythonPackage rec {
+  pname = "simpy";
+  version = "3.0.11";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0hqgxk3lggf21jq9lh8838cdl24mdkdnpzh0w4m28d0zn2wjb5nh";
+  };
+
+  meta = with lib; {
+    homepage = https://simpy.readthedocs.io/en/latest/;
+    description = "A process-based discrete-event simulation framework based on standard Python.";
+    license = [ licenses.mit ];
+    maintainers = with maintainers; [ shlevy ];
+  };
+}
diff --git a/pkgs/development/python-modules/smart_open/default.nix b/pkgs/development/python-modules/smart_open/default.nix
index 006f52f1d38b7..8c66df80dc587 100644
--- a/pkgs/development/python-modules/smart_open/default.nix
+++ b/pkgs/development/python-modules/smart_open/default.nix
@@ -1,6 +1,5 @@
 { lib
 , buildPythonPackage
-, isPy3k
 , fetchPypi
 , boto
 , boto3
diff --git a/pkgs/development/python-modules/spacy/default.nix b/pkgs/development/python-modules/spacy/default.nix
index 16c1841a3d625..d2a306356b6d2 100644
--- a/pkgs/development/python-modules/spacy/default.nix
+++ b/pkgs/development/python-modules/spacy/default.nix
@@ -1,7 +1,5 @@
 { lib
-, pkgs
 , buildPythonPackage
-, python
 , fetchPypi
 , pythonOlder
 , html5lib
diff --git a/pkgs/development/python-modules/sqlalchemy/default.nix b/pkgs/development/python-modules/sqlalchemy/default.nix
index 211419f86b1bf..50d58877b7ea0 100644
--- a/pkgs/development/python-modules/sqlalchemy/default.nix
+++ b/pkgs/development/python-modules/sqlalchemy/default.nix
@@ -3,7 +3,6 @@
 , buildPythonPackage
 , pytest
 , mock
-, pytest_xdist
 , isPy3k
 , pysqlite
 }:
diff --git a/pkgs/development/python-modules/sseclient/default.nix b/pkgs/development/python-modules/sseclient/default.nix
index 9ac04e18e4f6c..a122a0c40ec87 100644
--- a/pkgs/development/python-modules/sseclient/default.nix
+++ b/pkgs/development/python-modules/sseclient/default.nix
@@ -1,6 +1,6 @@
 { stdenv, buildPythonPackage, fetchPypi
 , requests, six
-, backports_unittest-mock, pluggy, pytest, pytestrunner }:
+, backports_unittest-mock, pytest, pytestrunner }:
 
 buildPythonPackage rec {
   pname = "sseclient";
diff --git a/pkgs/development/python-modules/syncserver/default.nix b/pkgs/development/python-modules/syncserver/default.nix
index 3c650bd60ddac..7a93d64a89f5c 100644
--- a/pkgs/development/python-modules/syncserver/default.nix
+++ b/pkgs/development/python-modules/syncserver/default.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, buildPythonPackage
+{ buildPythonPackage
 , fetchgit
 , isPy27
 , unittest2
diff --git a/pkgs/development/python-modules/tempora/default.nix b/pkgs/development/python-modules/tempora/default.nix
index c56a5d7889f63..9f8087a305d91 100644
--- a/pkgs/development/python-modules/tempora/default.nix
+++ b/pkgs/development/python-modules/tempora/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi
+{ buildPythonPackage, fetchPypi
 , setuptools_scm
 , six, pytz}:
 
diff --git a/pkgs/development/python-modules/tensorflow/bin.nix b/pkgs/development/python-modules/tensorflow/bin.nix
index 21b21f174d0be..4e3621157f939 100644
--- a/pkgs/development/python-modules/tensorflow/bin.nix
+++ b/pkgs/development/python-modules/tensorflow/bin.nix
@@ -2,7 +2,7 @@
 , lib
 , fetchurl
 , buildPythonPackage
-, isPy3k, isPy35, isPy36, pythonOlder
+, isPy3k, isPy36, pythonOlder
 , astor
 , gast
 , numpy
diff --git a/pkgs/development/python-modules/testfixtures/default.nix b/pkgs/development/python-modules/testfixtures/default.nix
index 628be2e946af6..1e35d95c5e1f8 100644
--- a/pkgs/development/python-modules/testfixtures/default.nix
+++ b/pkgs/development/python-modules/testfixtures/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchPypi
-, mock, manuel, pytest, sybil, zope_component, django }:
+, mock, manuel, pytest, sybil, zope_component }:
 
 buildPythonPackage rec {
   pname = "testfixtures";
diff --git a/pkgs/development/python-modules/textacy/default.nix b/pkgs/development/python-modules/textacy/default.nix
index d42430248216f..9b22ad3e54560 100644
--- a/pkgs/development/python-modules/textacy/default.nix
+++ b/pkgs/development/python-modules/textacy/default.nix
@@ -4,7 +4,6 @@
 , fetchPypi
 , cachetools
 , cld2-cffi
-, cython
 , cytoolz
 , ftfy
 , ijson
diff --git a/pkgs/development/python-modules/thespian/default.nix b/pkgs/development/python-modules/thespian/default.nix
index 0ffaf315d54b4..0ced52c7ba105 100644
--- a/pkgs/development/python-modules/thespian/default.nix
+++ b/pkgs/development/python-modules/thespian/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, lib }:
+{ fetchPypi, buildPythonPackage, lib }:
 
 buildPythonPackage rec {
   version = "3.9.2";
diff --git a/pkgs/development/python-modules/thinc/default.nix b/pkgs/development/python-modules/thinc/default.nix
index b581282002380..88e6c8d167429 100644
--- a/pkgs/development/python-modules/thinc/default.nix
+++ b/pkgs/development/python-modules/thinc/default.nix
@@ -1,6 +1,5 @@
 { stdenv
 , lib
-, pkgs
 , buildPythonPackage
 , fetchPypi
 , pythonOlder
@@ -11,7 +10,6 @@
 , msgpack-python
 , preshed
 , numpy
-, python
 , murmurhash
 , pathlib
 , hypothesis
diff --git a/pkgs/development/python-modules/tiros/default.nix b/pkgs/development/python-modules/tiros/default.nix
index b55c42cfa561e..edc4bbdebb133 100644
--- a/pkgs/development/python-modules/tiros/default.nix
+++ b/pkgs/development/python-modules/tiros/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage
+{ fetchPypi, buildPythonPackage
 , semantic-version, boto3, flask, docutils, requests
 }:
 
diff --git a/pkgs/development/python-modules/todoist/default.nix b/pkgs/development/python-modules/todoist/default.nix
index 829d7bcfcb2b6..6f3eae60c635f 100644
--- a/pkgs/development/python-modules/todoist/default.nix
+++ b/pkgs/development/python-modules/todoist/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, python, buildPythonPackage
+{ stdenv, fetchPypi, buildPythonPackage
 , requests }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/tokenserver/default.nix b/pkgs/development/python-modules/tokenserver/default.nix
index c6efe5ba2397e..44fcb9b46ff9b 100644
--- a/pkgs/development/python-modules/tokenserver/default.nix
+++ b/pkgs/development/python-modules/tokenserver/default.nix
@@ -1,5 +1,4 @@
-{ stdenv
-, buildPythonPackage
+{ buildPythonPackage
 , fetchgit
 , testfixtures
 , cornice
diff --git a/pkgs/development/python-modules/tox/default.nix b/pkgs/development/python-modules/tox/default.nix
index 359f13e2a00bf..4ceeb026634ce 100644
--- a/pkgs/development/python-modules/tox/default.nix
+++ b/pkgs/development/python-modules/tox/default.nix
@@ -1,5 +1,4 @@
-{ lib
-, buildPythonPackage
+{ buildPythonPackage
 , fetchPypi
 , py
 , virtualenv
diff --git a/pkgs/development/python-modules/tqdm/default.nix b/pkgs/development/python-modules/tqdm/default.nix
index 87fa393ce5e33..0b77f70680120 100644
--- a/pkgs/development/python-modules/tqdm/default.nix
+++ b/pkgs/development/python-modules/tqdm/default.nix
@@ -5,8 +5,6 @@
 , coverage
 , glibcLocales
 , flake8
-, matplotlib
-, pandas
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/trezor/default.nix b/pkgs/development/python-modules/trezor/default.nix
index 9a6a3c39eec1f..0f96b100435a9 100644
--- a/pkgs/development/python-modules/trezor/default.nix
+++ b/pkgs/development/python-modules/trezor/default.nix
@@ -1,11 +1,13 @@
 { lib, fetchPypi, buildPythonPackage,
-  protobuf, hidapi, ecdsa, mnemonic, requests, pyblake2, click, libusb1, rlp
+  protobuf, hidapi, ecdsa, mnemonic, requests, pyblake2, click, libusb1, rlp, isPy3k
 }:
 
 buildPythonPackage rec {
   pname = "trezor";
   version = "0.9.1";
 
+  disabled = !isPy3k;
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "a481191011bade98f1e9f1201e7c72a83945050657bbc90dc4ac32dc8b8b46a4";
diff --git a/pkgs/development/python-modules/typed-ast/default.nix b/pkgs/development/python-modules/typed-ast/default.nix
index 0cfc8c3e14a93..5bd0f5f81d2ba 100644
--- a/pkgs/development/python-modules/typed-ast/default.nix
+++ b/pkgs/development/python-modules/typed-ast/default.nix
@@ -1,4 +1,4 @@
-{ buildPythonPackage, fetchPypi, isPy3k, lib, pythonOlder }:
+{ buildPythonPackage, fetchPypi, lib, pythonOlder }:
 buildPythonPackage rec {
   pname = "typed-ast";
   version = "1.1.0";
diff --git a/pkgs/development/python-modules/tzlocal/default.nix b/pkgs/development/python-modules/tzlocal/default.nix
index 3bb75fb2ac291..8320500fc141d 100644
--- a/pkgs/development/python-modules/tzlocal/default.nix
+++ b/pkgs/development/python-modules/tzlocal/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchPypi
-, tzlocal, pytz }:
+, pytz }:
 
 buildPythonPackage rec {
   pname = "tzlocal";
diff --git a/pkgs/development/python-modules/ukpostcodeparser/default.nix b/pkgs/development/python-modules/ukpostcodeparser/default.nix
index 235f33da59944..42588347c8517 100644
--- a/pkgs/development/python-modules/ukpostcodeparser/default.nix
+++ b/pkgs/development/python-modules/ukpostcodeparser/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchPypi }:
+{ lib, buildPythonPackage, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "UkPostcodeParser";
diff --git a/pkgs/development/python-modules/uranium/default.nix b/pkgs/development/python-modules/uranium/default.nix
index 276ed481601c1..eb2fa2bd042d5 100644
--- a/pkgs/development/python-modules/uranium/default.nix
+++ b/pkgs/development/python-modules/uranium/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, buildPythonPackage, fetchFromGitHub, python, cmake
+{ stdenv, buildPythonPackage, fetchFromGitHub, python, cmake
 , pyqt5, numpy, scipy, libarcus, doxygen, gettext, pythonOlder }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/vcrpy/default.nix b/pkgs/development/python-modules/vcrpy/default.nix
index ab4ce1be2b1a6..805941cab60db 100644
--- a/pkgs/development/python-modules/vcrpy/default.nix
+++ b/pkgs/development/python-modules/vcrpy/default.nix
@@ -7,7 +7,6 @@
 , contextlib2
 , wrapt
 , pytest
-, httpbin
 , pytest-httpbin
 , yarl
 , pythonOlder
diff --git a/pkgs/development/python-modules/warrant/default.nix b/pkgs/development/python-modules/warrant/default.nix
index c152271af3359..ef6089baa507f 100644
--- a/pkgs/development/python-modules/warrant/default.nix
+++ b/pkgs/development/python-modules/warrant/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchFromGitHub, fetchPypi, fetchpatch
+{ lib, buildPythonPackage, fetchFromGitHub, fetchpatch
 , mock
 , boto3, envs, python-jose, requests }:
 
diff --git a/pkgs/development/python-modules/wptserve/default.nix b/pkgs/development/python-modules/wptserve/default.nix
index b2ce75c43c3a5..32145623e4da4 100644
--- a/pkgs/development/python-modules/wptserve/default.nix
+++ b/pkgs/development/python-modules/wptserve/default.nix
@@ -1,5 +1,4 @@
 { lib
-, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
diff --git a/pkgs/development/python-modules/wsproto/default.nix b/pkgs/development/python-modules/wsproto/default.nix
index e98fcf205fd59..c3ac5b51cb0fa 100644
--- a/pkgs/development/python-modules/wsproto/default.nix
+++ b/pkgs/development/python-modules/wsproto/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, h11, enum34 }:
+{ buildPythonPackage, fetchPypi, h11, enum34 }:
 
 buildPythonPackage rec {
   pname = "wsproto";
diff --git a/pkgs/development/python-modules/xarray/default.nix b/pkgs/development/python-modules/xarray/default.nix
index 039a751a5e14d..a9041f9a76f75 100644
--- a/pkgs/development/python-modules/xarray/default.nix
+++ b/pkgs/development/python-modules/xarray/default.nix
@@ -5,7 +5,6 @@
 , numpy
 , pandas
 , python
-, fetchurl
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/xgboost/default.nix b/pkgs/development/python-modules/xgboost/default.nix
index 9b53c180397df..d9b8fc892c165 100644
--- a/pkgs/development/python-modules/xgboost/default.nix
+++ b/pkgs/development/python-modules/xgboost/default.nix
@@ -3,30 +3,28 @@
 , nose
 , scipy
 , xgboost
+, substituteAll
 }:
 
 buildPythonPackage rec {
   pname = "xgboost";
   inherit (xgboost) version src meta;
 
-  propagatedBuildInputs = [ scipy ];
-  checkInputs = [ nose ];
-
-  postPatch = let
-    libname = "libxgboost.${stdenv.hostPlatform.extensions.sharedLibrary}";
+  patches = [
+    (substituteAll {
+      src = ./lib-path-for-python.patch;
+      libpath = "${xgboost}/lib";
+    })
+  ];
 
-  in ''
-    cd python-package
+  postPatch = "cd python-package";
 
-    sed "s/CURRENT_DIR = os.path.dirname(__file__)/CURRENT_DIR = os.path.abspath(os.path.dirname(__file__))/g" -i setup.py
-    sed "/^LIB_PATH.*/a LIB_PATH = [os.path.relpath(LIB_PATH[0], CURRENT_DIR)]" -i setup.py
-    cat <<EOF >xgboost/libpath.py
-    def find_lib_path():
-      return ["${xgboost}/lib/${libname}"]
-    EOF
-  '';
+  propagatedBuildInputs = [ scipy ];
+  buildInputs = [ xgboost ];
+  checkInputs = [ nose ];
 
-  postInstall = ''
-    rm -rf $out/xgboost
+  checkPhase = ''
+    ln -sf ../demo .
+    nosetests ../tests/python
   '';
 }
diff --git a/pkgs/development/python-modules/xgboost/lib-path-for-python.patch b/pkgs/development/python-modules/xgboost/lib-path-for-python.patch
new file mode 100644
index 0000000000000..68b39dee53e98
--- /dev/null
+++ b/pkgs/development/python-modules/xgboost/lib-path-for-python.patch
@@ -0,0 +1,59 @@
+diff --git a/python-package/setup.py b/python-package/setup.py
+index e6c3386f..4ed0a8bd 100644
+--- a/python-package/setup.py
++++ b/python-package/setup.py
+@@ -16,8 +16,6 @@ libpath_py = os.path.join(CURRENT_DIR, 'xgboost/libpath.py')
+ libpath = {'__file__': libpath_py}
+ exec(compile(open(libpath_py, "rb").read(), libpath_py, 'exec'), libpath, libpath)
+ 
+-LIB_PATH = [os.path.relpath(libfile, CURRENT_DIR) for libfile in libpath['find_lib_path']()]
+-print("Install libxgboost from: %s" % LIB_PATH)
+ # Please use setup_pip.py for generating and deploying pip installation
+ # detailed instruction in setup_pip.py
+ setup(name='xgboost',
+@@ -35,7 +33,6 @@ setup(name='xgboost',
+       # this will use MANIFEST.in during install where we specify additional files,
+       # this is the golden line
+       include_package_data=True,
+-      data_files=[('xgboost', LIB_PATH)],
+       license='Apache-2.0',
+       classifiers=['License :: OSI Approved :: Apache Software License'],
+       url='https://github.com/dmlc/xgboost')
+diff --git a/python-package/xgboost/libpath.py b/python-package/xgboost/libpath.py
+index d87922c0..859a30fb 100644
+--- a/python-package/xgboost/libpath.py
++++ b/python-package/xgboost/libpath.py
+@@ -19,32 +19,4 @@ def find_lib_path():
+     lib_path: list(string)
+        List of all found library path to xgboost
+     """
+-    curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
+-    # make pythonpack hack: copy this directory one level upper for setup.py
+-    dll_path = [curr_path, os.path.join(curr_path, '../../lib/'),
+-                os.path.join(curr_path, './lib/'),
+-                os.path.join(sys.prefix, 'xgboost')]
+-    if sys.platform == 'win32':
+-        if platform.architecture()[0] == '64bit':
+-            dll_path.append(os.path.join(curr_path, '../../windows/x64/Release/'))
+-            # hack for pip installation when copy all parent source directory here
+-            dll_path.append(os.path.join(curr_path, './windows/x64/Release/'))
+-        else:
+-            dll_path.append(os.path.join(curr_path, '../../windows/Release/'))
+-            # hack for pip installation when copy all parent source directory here
+-            dll_path.append(os.path.join(curr_path, './windows/Release/'))
+-        dll_path = [os.path.join(p, 'xgboost.dll') for p in dll_path]
+-    elif sys.platform.startswith('linux') or sys.platform.startswith('freebsd'):
+-        dll_path = [os.path.join(p, 'libxgboost.so') for p in dll_path]
+-    elif sys.platform == 'darwin':
+-        dll_path = [os.path.join(p, 'libxgboost.dylib') for p in dll_path]
+-
+-    lib_path = [p for p in dll_path if os.path.exists(p) and os.path.isfile(p)]
+-
+-    # From github issues, most of installation errors come from machines w/o compilers
+-    if not lib_path and not os.environ.get('XGBOOST_BUILD_DOC', False):
+-        raise XGBoostLibraryNotFound(
+-            'Cannot find XGBoost Library in the candidate path, ' +
+-            'did you install compilers and run build.sh in root path?\n'
+-            'List of candidates:\n' + ('\n'.join(dll_path)))
+-    return lib_path
++    return ["@libpath@/libxgboost.so"]
diff --git a/pkgs/development/python-modules/zconfig/default.nix b/pkgs/development/python-modules/zconfig/default.nix
index f8f933b96abb1..79f6ddca5434f 100644
--- a/pkgs/development/python-modules/zconfig/default.nix
+++ b/pkgs/development/python-modules/zconfig/default.nix
@@ -15,7 +15,8 @@ buildPythonPackage rec {
     sha256 = "de0a802e5dfea3c0b3497ccdbe33a5023c4265f950f33e35dd4cf078d2a81b19";
   };
 
-  patches = [ ./skip-broken-test.patch ];
+  patches = [ ./skip-broken-test.patch ]
+    ++ stdenv.lib.optional stdenv.hostPlatform.isMusl ./remove-setlocale-test.patch;
 
   buildInputs = [ manuel docutils ];
   propagatedBuildInputs = [ zope_testrunner ];
diff --git a/pkgs/development/python-modules/zconfig/remove-setlocale-test.patch b/pkgs/development/python-modules/zconfig/remove-setlocale-test.patch
new file mode 100644
index 0000000000000..6b3d3266b21b3
--- /dev/null
+++ b/pkgs/development/python-modules/zconfig/remove-setlocale-test.patch
@@ -0,0 +1,24 @@
+From 43fd87037be1c98b6afa20f179f2e2d8ef5491ba Mon Sep 17 00:00:00 2001
+From: Will Dietz <w@wdtz.org>
+Date: Fri, 20 Jul 2018 10:07:22 -0500
+Subject: [PATCH] remove test that fails w/musl (setlocale() always succeeds)
+
+---
+ ZConfig/tests/test_datatypes.py | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/ZConfig/tests/test_datatypes.py b/ZConfig/tests/test_datatypes.py
+index 7c8d80c..addecd2 100644
+--- a/ZConfig/tests/test_datatypes.py
++++ b/ZConfig/tests/test_datatypes.py
+@@ -229,7 +229,6 @@ class DatatypeTestCase(unittest.TestCase):
+         convert = self.types.get("locale")
+         # Python supports "C" even when the _locale module is not available
+         self.assertEqual(convert("C"), "C")
+-        self.assertRaises(ValueError, convert, "locale-does-not-exist")
+ 
+     def test_datatype_port(self):
+         convert = self.types.get("port-number")
+-- 
+2.18.0
+
diff --git a/pkgs/development/python-modules/zeep/default.nix b/pkgs/development/python-modules/zeep/default.nix
index 418fcebaefd52..f283479c8de8d 100644
--- a/pkgs/development/python-modules/zeep/default.nix
+++ b/pkgs/development/python-modules/zeep/default.nix
@@ -19,7 +19,6 @@
 , pytest
 , pytestcov
 , requests-mock
-, testtools
 , tornado
 }:
 
diff --git a/pkgs/development/python-modules/zodb/default.nix b/pkgs/development/python-modules/zodb/default.nix
index 9aab2ba9e8441..c23f332638d04 100644
--- a/pkgs/development/python-modules/zodb/default.nix
+++ b/pkgs/development/python-modules/zodb/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , fetchPypi
 , buildPythonPackage
-, isPy3k
 , zope_testrunner
 , transaction
 , six
diff --git a/pkgs/development/python-modules/zope_testrunner/default.nix b/pkgs/development/python-modules/zope_testrunner/default.nix
index e2bf3a569d048..a4988332b226d 100644
--- a/pkgs/development/python-modules/zope_testrunner/default.nix
+++ b/pkgs/development/python-modules/zope_testrunner/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , buildPythonPackage
 , fetchPypi
-, fetchpatch
 , zope_interface
 , zope_exceptions
 , zope_testing