diff --git a/pkgs/applications/science/spyder/default.nix b/pkgs/applications/science/spyder/default.nix
index 0952b61551e3..04a5def81e69 100644
--- a/pkgs/applications/science/spyder/default.nix
+++ b/pkgs/applications/science/spyder/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchPypi, unzip, buildPythonApplication, makeDesktopItem
 # mandatory
-, qtpy, numpydoc, qtconsole, qtawesome, jedi, pycodestyle, psutil
-, pyflakes, rope, sphinx, nbconvert, mccabe
+, numpydoc, qtconsole, qtawesome, jedi, pycodestyle, psutil
+, pyflakes, rope, sphinx, nbconvert, mccabe, pyopengl, cloudpickle
 # optional
 , numpy ? null, scipy ? null, matplotlib ? null
 # optional
@@ -10,17 +10,21 @@
 
 buildPythonApplication rec {
   pname = "spyder";
-  version = "3.2.4";
-  namePrefix = "";
+  version = "3.2.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "028hg71gfq2yrplwhhl7hl4rbwji1l0zxzghblwmb0i443ki10v3";
+    sha256 = "87d6a4f5ee1aac4284461ee3584c3ade50cb53feb3fe35abebfdfb9be18c526a";
   };
 
+  # Somehow setuptools can't find pyqt5. Maybe because the dist-info folder is missing?
+  postPatch = ''
+    substituteInPlace setup.py --replace 'pyqt5;python_version>="3"' ' '
+  '';
+
   propagatedBuildInputs = [
-    jedi pycodestyle psutil qtpy pyflakes rope numpy scipy matplotlib pylint
-    numpydoc qtconsole qtawesome nbconvert mccabe
+    jedi pycodestyle psutil pyflakes rope numpy scipy matplotlib pylint
+    numpydoc qtconsole qtawesome nbconvert mccabe pyopengl cloudpickle
   ];
 
   # There is no test for spyder
diff --git a/pkgs/development/python-modules/adal/default.nix b/pkgs/development/python-modules/adal/default.nix
index a1fb96673957..bfd23ab584f9 100644
--- a/pkgs/development/python-modules/adal/default.nix
+++ b/pkgs/development/python-modules/adal/default.nix
@@ -3,12 +3,12 @@
 
 buildPythonPackage rec {
   pname = "adal";
-  version = "0.4.7";
+  version = "0.5.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "114046ac85d0054791c21b00922f26286822bc6f2ba3716db42e7e57f762ef20";
+    sha256 = "120821f72ca9d59a7c7197fc14d0e27448ff8d331fae230f92d713b9b5c721f7";
   };
 
   propagatedBuildInputs =  [ requests pyjwt dateutil ];
diff --git a/pkgs/development/python-modules/agate-excel/default.nix b/pkgs/development/python-modules/agate-excel/default.nix
index cb0113c22b3d..b39df3959fae 100644
--- a/pkgs/development/python-modules/agate-excel/default.nix
+++ b/pkgs/development/python-modules/agate-excel/default.nix
@@ -3,11 +3,11 @@
 buildPythonPackage rec {
     name = "${pname}-${version}";
     pname = "agate-excel";
-    version = "0.2.1";
+    version = "0.2.2";
 
     src = fetchPypi {
       inherit pname version;
-      sha256 = "1d28s01a0a8n8rdrd78w88cqgl3lawzy38h9afwm0iks618i0qn7";
+      sha256 = "8923f71ee2b5b7b21e52fb314a769b28fb902f647534f5cbbb41991d8710f4c7";
     };
 
     propagatedBuildInputs = [ agate openpyxl xlrd ];
diff --git a/pkgs/development/python-modules/agate-sql/default.nix b/pkgs/development/python-modules/agate-sql/default.nix
index 0167b40ea43f..34de9ea06e9c 100644
--- a/pkgs/development/python-modules/agate-sql/default.nix
+++ b/pkgs/development/python-modules/agate-sql/default.nix
@@ -3,11 +3,11 @@
 buildPythonPackage rec {
     name = "${pname}-${version}";
     pname = "agate-sql";
-    version = "0.5.2";
+    version = "0.5.3";
 
     src = fetchPypi {
       inherit pname version;
-      sha256 = "0qlfwql6fnbs0r1rj7nxv4n5scad53b8dlh4qv6gyklvdk3wwn14";
+      sha256 = "877b7b85adb5f0325455bba8d50a1623fa32af33680b554feca7c756a15ad9b4";
     };
 
     propagatedBuildInputs = [ agate sqlalchemy ];
diff --git a/pkgs/development/python-modules/ansicolor/default.nix b/pkgs/development/python-modules/ansicolor/default.nix
index ca29b631f471..26b182dfc08a 100644
--- a/pkgs/development/python-modules/ansicolor/default.nix
+++ b/pkgs/development/python-modules/ansicolor/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "ansicolor";
-  version = "0.2.4";
+  version = "0.2.6";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0zlkk9706xn5yshwzdn8xsfkim8iv44zsl6qjwg2f4gn62rqky1h";
+    sha256 = "d17e1b07b9dd7ded31699fbca53ae6cd373584f9b6dcbc124d1f321ebad31f1d";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/python-modules/asgiref/default.nix b/pkgs/development/python-modules/asgiref/default.nix
index d88f44149bf2..a2815fc0c86f 100644
--- a/pkgs/development/python-modules/asgiref/default.nix
+++ b/pkgs/development/python-modules/asgiref/default.nix
@@ -1,12 +1,12 @@
 { stdenv, buildPythonPackage, fetchurl, six }:
 buildPythonPackage rec {
-  version = "2.1.0";
+  version = "2.1.1";
   pname = "asgiref";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/a/asgiref/${name}.tar.gz";
-    sha256 = "2bfd70fcc51df4036768b91d7b13524090dc8f366d79fa44ba2b0aeb47306344";
+    sha256 = "112828022d772925b47b22caf8108dadd3b26bb0af719eb01b2c3a807795429d";
   };
 
   propagatedBuildInputs = [ six ];
diff --git a/pkgs/development/python-modules/astroid/default.nix b/pkgs/development/python-modules/astroid/default.nix
index 862157f686a3..d22a10ec1502 100644
--- a/pkgs/development/python-modules/astroid/default.nix
+++ b/pkgs/development/python-modules/astroid/default.nix
@@ -6,11 +6,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "astroid";
-  version = "1.6.0";
+  version = "1.6.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "71dadba2110008e2c03f9fde662ddd2053db3c0489d0e03c94e828a0399edd4f";
+    sha256 = "f0a0e386dbca9f93ea9f3ea6f32b37a24720502b7baa9cb17c3976a680d43a06";
   };
 
   propagatedBuildInputs = [ logilab_common six lazy-object-proxy wrapt ]
diff --git a/pkgs/development/python-modules/autopep8/default.nix b/pkgs/development/python-modules/autopep8/default.nix
index 06ad939cfa8b..6e58e3485ab2 100644
--- a/pkgs/development/python-modules/autopep8/default.nix
+++ b/pkgs/development/python-modules/autopep8/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "autopep8";
-  version = "1.3.3";
+  version = "1.3.4";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0c1gl648g2xnz3j0rsp71ld4i32zlglmqjvqf4q8r08jp3zpny7z";
+    sha256 = "c7be71ab0cb2f50c9c22c82f0c9acaafc6f57492c3fbfee9790c415005c2b9a5";
   };
 
   propagatedBuildInputs = [ pycodestyle ];
diff --git a/pkgs/development/python-modules/botocore/default.nix b/pkgs/development/python-modules/botocore/default.nix
index 8f9c0fd74e6b..897e9c884072 100644
--- a/pkgs/development/python-modules/botocore/default.nix
+++ b/pkgs/development/python-modules/botocore/default.nix
@@ -12,11 +12,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "botocore";
-  version = "1.8.33";
+  version = "1.8.36";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "fa29ea54f26b1193682332d3b4cdde7aa79b4eaccb23f70e88672509c24546f4";
+    sha256 = "b2c9e0fd6d14910f759a33c19f8315dddedbb3c5569472b7be7ceed4f001a675";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/buildout-nix/default.nix b/pkgs/development/python-modules/buildout-nix/default.nix
index 43a0a42f8e93..c4cde583f05b 100644
--- a/pkgs/development/python-modules/buildout-nix/default.nix
+++ b/pkgs/development/python-modules/buildout-nix/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "zc.buildout";
-  version = "2.10.0";
+  version = "2.11.0";
   name = "${pname}-nix-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.tar.gz";
-    sha256 = "00wi0f6wpfl2gywr02x2yqvx6i1k0ll5w4lhdl0khijk4g7mk8dq";
+    sha256 = "092b0a147d5fb4e79ee0afde665570f85738e714463854f9e4f7f38d0b27ea82";
   };
 
   patches = [ ./nix.patch ];
diff --git a/pkgs/development/python-modules/chainer/default.nix b/pkgs/development/python-modules/chainer/default.nix
index 06a455176a2a..b7a58f11a15b 100644
--- a/pkgs/development/python-modules/chainer/default.nix
+++ b/pkgs/development/python-modules/chainer/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "chainer";
-  version = "3.2.0";
+  version = "3.3.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0mbc8kwk7pvg03bf0j57a48gr6rsdg4lzmyj0dak8y2l4lmyskpw";
+    sha256 = "0669375e5b09d687781a37d6c025ee0a6015f575b4d2c70a2ad09c33b8228f86";
   };
 
   checkInputs = [
diff --git a/pkgs/development/python-modules/channels/default.nix b/pkgs/development/python-modules/channels/default.nix
index e5c92ffcde26..36191b95479b 100644
--- a/pkgs/development/python-modules/channels/default.nix
+++ b/pkgs/development/python-modules/channels/default.nix
@@ -4,11 +4,11 @@
 buildPythonPackage rec {
   pname = "channels";
   name = "${pname}-${version}";
-  version = "1.1.8";
+  version = "2.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0gsy3hwn1vd709jkw8ay44qrm6aw7qggr312z8xwzq0x4ihjda02";
+    sha256 = "c365492b90bd936c763e06cd76bda96cd3e70e5a5d2a196c25754e0c1d8da85a";
   };
 
   # Files are missing in the distribution
diff --git a/pkgs/development/python-modules/click-threading/default.nix b/pkgs/development/python-modules/click-threading/default.nix
index 5be41007c6a9..3fe2af19fef9 100644
--- a/pkgs/development/python-modules/click-threading/default.nix
+++ b/pkgs/development/python-modules/click-threading/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "click-threading";
-  version = "0.4.2";
+  version = "0.4.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "400b0bb63d9096b6bf2806efaf742a1cc8b6c88e0484f0afe7d7a7f0e9870609";
+    sha256 = "b2b0fada5bf184b56afaccc99d0d2548d8ab07feb2e95e29e490f6b99c605de7";
   };
 
   checkInputs = [ pytest ];
diff --git a/pkgs/development/python-modules/cryptography/default.nix b/pkgs/development/python-modules/cryptography/default.nix
new file mode 100644
index 000000000000..606b174a514d
--- /dev/null
+++ b/pkgs/development/python-modules/cryptography/default.nix
@@ -0,0 +1,67 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, openssl
+, cryptography_vectors
+, darwin
+, idna
+, asn1crypto
+, packaging
+, six
+, pythonOlder
+, enum34
+, ipaddress
+, isPyPy
+, cffi
+, pytest
+, pretend
+, iso8601
+, pytz
+, hypothesis
+}:
+
+let
+  version = "2.1.4";
+in assert version == cryptography_vectors.version; buildPythonPackage rec {
+  # also bump cryptography_vectors
+  pname = "cryptography";
+  inherit version;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "e4d967371c5b6b2e67855066471d844c5d52d210c36c28d49a8507b96e2c5291";
+  };
+
+  outputs = [ "out" "dev" ];
+
+  buildInputs = [ openssl cryptography_vectors ]
+             ++ stdenv.lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.Security;
+  propagatedBuildInputs = [
+    idna
+    asn1crypto
+    packaging
+    six
+  ] ++ stdenv.lib.optional (pythonOlder "3.4") enum34
+  ++ stdenv.lib.optional (pythonOlder "3.3") ipaddress
+  ++ stdenv.lib.optional (!isPyPy) cffi;
+
+  checkInputs = [
+    pytest
+    pretend
+    iso8601
+    pytz
+    hypothesis
+  ];
+
+  # The test assumes that if we're on Sierra or higher, that we use `getentropy`, but for binary
+  # compatibility with pre-Sierra for binary caches, we hide that symbol so the library doesn't
+  # use it. This boils down to them checking compatibility with `getentropy` in two different places,
+  # so let's neuter the second test.
+  postPatch = ''
+    substituteInPlace ./tests/hazmat/backends/test_openssl.py --replace '"16.0"' '"99.0"'
+  '';
+
+  # IOKit's dependencies are inconsistent between OSX versions, so this is the best we
+  # can do until nix 1.11's release
+  __impureHostDeps = [ "/usr/lib" ];
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/cryptography_vectors/default.nix b/pkgs/development/python-modules/cryptography_vectors/default.nix
new file mode 100644
index 000000000000..ce272d29ca19
--- /dev/null
+++ b/pkgs/development/python-modules/cryptography_vectors/default.nix
@@ -0,0 +1,18 @@
+{ buildPythonPackage
+, fetchPypi
+, cryptography
+}:
+
+buildPythonPackage rec {
+  # also bump cryptography
+  pname = "cryptography_vectors";
+  version = "2.1.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "78c4b4f3f84853ea5d038e2f53d355229dd8119fe9cf949c3e497c85c760a5ca";
+  };
+
+  # No tests included
+  doCheck = false;
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/cupy/default.nix b/pkgs/development/python-modules/cupy/default.nix
index 6ac91c0aa255..e020eafc04c8 100644
--- a/pkgs/development/python-modules/cupy/default.nix
+++ b/pkgs/development/python-modules/cupy/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "cupy";
-  version = "2.2.0";
+  version = "2.3.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0si0ri8azxvxh3lpm4l4g60jf4nwzibi53yldbdbzb1svlqq060r";
+    sha256 = "7426f6332cb01513d2a6a687792dfa17c678ff64dd1b19b04559ddd5672c833f";
   };
 
   checkInputs = [
diff --git a/pkgs/development/python-modules/daphne/default.nix b/pkgs/development/python-modules/daphne/default.nix
index f819a234146b..6fec8bf882c7 100644
--- a/pkgs/development/python-modules/daphne/default.nix
+++ b/pkgs/development/python-modules/daphne/default.nix
@@ -4,11 +4,11 @@
 buildPythonPackage rec {
   pname = "daphne";
   name = "${pname}-${version}";
-  version = "1.4.2";
+  version = "2.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "302725f223853b05688f28c361e050f8db9568b1ce27340c76272c26b49e6d72";
+    sha256 = "ecd43a2dd889fb74e16bf8b7f67c076c4ec1b36229ce782272e46c50d56174dd";
   };
 
   buildInputs = [ hypothesis ];
diff --git a/pkgs/development/python-modules/dicttoxml/default.nix b/pkgs/development/python-modules/dicttoxml/default.nix
new file mode 100644
index 000000000000..7d30aad69c45
--- /dev/null
+++ b/pkgs/development/python-modules/dicttoxml/default.nix
@@ -0,0 +1,23 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "dicttoxml";
+  version = "1.7.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ea44cc4ec6c0f85098c57a431a1ee891b3549347b07b7414c8a24611ecf37e45";
+  };
+
+  # No tests in archive
+  doCheck = false;
+
+  meta = {
+    description = "Converts a Python dictionary or other native data type into a valid XML string";
+    homepage = https://github.com/quandyfactory/dicttoxml;
+    license = lib.licenses.gpl2;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/django-polymorphic/default.nix b/pkgs/development/python-modules/django-polymorphic/default.nix
index e2fedfdaaf3e..1e3d60b765cd 100644
--- a/pkgs/development/python-modules/django-polymorphic/default.nix
+++ b/pkgs/development/python-modules/django-polymorphic/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "django-polymorphic";
-  version = "1.3";
+  version = "2.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "8737b465ebf5fad772b4c52272189c352f5904f468d298584a3469187e3207ad";
+    sha256 = "78f666149ea10cdda08ac6c25ddf4b4e582ee380be87e7968bfed008ef39dfa5";
   };
 
   checkInputs = [ django ];
diff --git a/pkgs/development/python-modules/docker/default.nix b/pkgs/development/python-modules/docker/default.nix
index 4ce013ac7976..e0ab354173e3 100644
--- a/pkgs/development/python-modules/docker/default.nix
+++ b/pkgs/development/python-modules/docker/default.nix
@@ -3,13 +3,13 @@
 , ipaddress, backports_ssl_match_hostname, docker_pycreds
 }:
 buildPythonPackage rec {
-  version = "2.7.0";
+  version = "3.0.0";
   pname = "docker";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/d/docker/${name}.tar.gz";
-    sha256 = "144248308e8ea31c4863c6d74e1b55daf97cc190b61d0fe7b7313ab920d6a76c";
+    sha256 = "4a1083656c6ac7615c19094d9b5e052f36e38d0b07e63d7e506c9b5b32c3abe2";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/edward/default.nix b/pkgs/development/python-modules/edward/default.nix
index d29174209a9d..b09bef9fec4e 100644
--- a/pkgs/development/python-modules/edward/default.nix
+++ b/pkgs/development/python-modules/edward/default.nix
@@ -3,14 +3,14 @@
 
 buildPythonPackage rec {
   pname = "edward";
-  version = "1.3.4";
+  version = "1.3.5";
   name  = "${pname}-${version}";
 
   disabled = !(isPy27 || pythonAtLeast "3.4");
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "10d6d7886235f4b9fa4ba401daef87c27937a04d2763f507643d730e51de37b6";
+    sha256 = "3818b39e77c26fc1a37767a74fdd5e7d02877d75ed901ead2f40bd03baaa109f";
   };
 
   # disabled for now due to Tensorflow trying to create files in $HOME:
diff --git a/pkgs/development/python-modules/filelock/default.nix b/pkgs/development/python-modules/filelock/default.nix
index 5d617ba9369b..46d26e80d563 100644
--- a/pkgs/development/python-modules/filelock/default.nix
+++ b/pkgs/development/python-modules/filelock/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "filelock";
-  version = "3.0.0";
+  version = "3.0.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "b3ad481724adfb2280773edd95ce501e497e88fa4489c6e41e637ab3fd9a456c";
+    sha256 = "011327d4ed939693a5b28c0fdf2fd9bda1f68614c1d6d0643a89382ce9843a71";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/python-modules/ftfy/default.nix b/pkgs/development/python-modules/ftfy/default.nix
index e54531017f4c..d88c894009c1 100644
--- a/pkgs/development/python-modules/ftfy/default.nix
+++ b/pkgs/development/python-modules/ftfy/default.nix
@@ -11,11 +11,11 @@ buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "ftfy";
   # latest is 5.1.1, buy spaCy requires 4.4.3
-  version = "5.2.0";
+  version = "5.3.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "b9f84a1437f68ad0bb964fd9da9f6b88d090113ec9e78f290f6d6d0221468e38";
+    sha256 = "0ba702d5138f9b35df32b55920c9466208608108f1f3d5de1a68c17e3d68cb7f";
   };
 
   propagatedBuildInputs = [ html5lib wcwidth];
diff --git a/pkgs/development/python-modules/gensim/default.nix b/pkgs/development/python-modules/gensim/default.nix
index 4edd9ac3e551..0c1ffacd827b 100644
--- a/pkgs/development/python-modules/gensim/default.nix
+++ b/pkgs/development/python-modules/gensim/default.nix
@@ -13,10 +13,10 @@
 buildPythonPackage rec {
   pname = "gensim";
   name = "${pname}-${version}";
-  version = "3.2.0";
+  version = "3.3.0";
   src = fetchPypi {
     inherit pname version;
-    sha256 = "db00b68c6567ba0598d400b917c889e8801adf249170ce0a80ec38187d1b0797";
+    sha256 = "6b2a813887583e63c8cedd26a91782e5f1e416a11f85394a92ae3ff908e0be03";
   };
 
   propagatedBuildInputs = [ smart_open numpy six scipy
diff --git a/pkgs/development/python-modules/google_cloud_speech/default.nix b/pkgs/development/python-modules/google_cloud_speech/default.nix
index 796bd26febd0..a388c0fa70cb 100644
--- a/pkgs/development/python-modules/google_cloud_speech/default.nix
+++ b/pkgs/development/python-modules/google_cloud_speech/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "google-cloud-speech";
-  version = "0.30.0";
+  version = "0.31.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0ckigh6bfzhflhllqdnfygm8w0r6ncp0myf1midifx7sn880g4pa";
+    sha256 = "b0f6a542165750e42b1c92e6c465e8dc35c38d138ae7f08174971ab9b0df2a71";
   };
 
   propagatedBuildInputs = [ setuptools google_api_core google_gax google_cloud_core ];
diff --git a/pkgs/development/python-modules/grpcio/default.nix b/pkgs/development/python-modules/grpcio/default.nix
index c22f2c2f4d7b..ea59bedc0359 100644
--- a/pkgs/development/python-modules/grpcio/default.nix
+++ b/pkgs/development/python-modules/grpcio/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "grpcio";
-  version = "1.8.4";
+  version = "1.9.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "88d87aab9c7889b3ab29dd74aac1a5493ed78b9bf5afba1c069c9dd5531f951d";
+    sha256 = "b61d3a7c45aa08f15dfa735a6a8282b5097be91ff36ad347594d3945ffc12181";
   };
 
   propagatedBuildInputs = [ six protobuf ]
diff --git a/pkgs/development/python-modules/hglib/default.nix b/pkgs/development/python-modules/hglib/default.nix
index 4e96f9389918..8acaf9f06376 100644
--- a/pkgs/development/python-modules/hglib/default.nix
+++ b/pkgs/development/python-modules/hglib/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "python-hglib";
-  version = "2.4";
+  version = "2.5";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0qll9cc9ndqizby00gxdcf6d0cysdhjkr8670a4ffrk55bcnwgb9";
+    sha256 = "fee180bb6796e5d2d25158b2d3c9f048648e427dd28b23a58d369adb14dd67cb";
   };
 
   checkInputs = [ nose ];
diff --git a/pkgs/development/python-modules/ipywidgets/default.nix b/pkgs/development/python-modules/ipywidgets/default.nix
index f77c3570c02f..b41f70c073c0 100644
--- a/pkgs/development/python-modules/ipywidgets/default.nix
+++ b/pkgs/development/python-modules/ipywidgets/default.nix
@@ -14,12 +14,12 @@
 
 buildPythonPackage rec {
   pname = "ipywidgets";
-  version = "7.1.0";
+  version = "7.1.1";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "3e2be7dea4f97c9a4df71ef065cad9f2e420dd901127bf7cb690fb56d2b34ea3";
+    sha256 = "69e8c444e99601e6f9b9e9e596c87c19665fc73c2dd05cd507c94f35fba2959d";
   };
 
   # Tests are not distributed
diff --git a/pkgs/development/python-modules/jupyter_client/default.nix b/pkgs/development/python-modules/jupyter_client/default.nix
index 42d7752eda3b..d94842ade126 100644
--- a/pkgs/development/python-modules/jupyter_client/default.nix
+++ b/pkgs/development/python-modules/jupyter_client/default.nix
@@ -11,19 +11,20 @@
 , ipython
 , mock
 , pytest
+, tornado
 }:
 
 buildPythonPackage rec {
   pname = "jupyter_client";
-  version = "5.2.1";
+  version = "5.2.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "462790d46b244f0a631ea5e3cd5cdbad6874d5d24cc0ff512deb7c16cdf8653d";
+    sha256 = "83d5e23132f0d8f79ccd3939f53fb9fa97f88a896a85114dc48d0e86909b06c4";
   };
 
   checkInputs = [ ipykernel ipython mock pytest ];
-  propagatedBuildInputs = [traitlets jupyter_core pyzmq dateutil] ++ lib.optional isPyPy py;
+  propagatedBuildInputs = [traitlets jupyter_core pyzmq dateutil tornado ] ++ lib.optional isPyPy py;
 
   checkPhase = ''
     py.test
diff --git a/pkgs/development/python-modules/keyring/default.nix b/pkgs/development/python-modules/keyring/default.nix
index 0f99152766a3..8c97b18e9b61 100644
--- a/pkgs/development/python-modules/keyring/default.nix
+++ b/pkgs/development/python-modules/keyring/default.nix
@@ -6,11 +6,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "keyring";
-  version = "10.6.0";
+  version = "11.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "69c2b69d66a0db1165c6875c1833c52f4dc62179959692b30c8c4a4b8390d895";
+    sha256 = "b4607520a7c97be96be4ddc00f4b9dac65f47a45af4b4cd13ed5a8879641d646";
   };
 
   buildInputs = [
diff --git a/pkgs/development/python-modules/limits/default.nix b/pkgs/development/python-modules/limits/default.nix
index 672cad5bfe17..57f47ff5fd82 100644
--- a/pkgs/development/python-modules/limits/default.nix
+++ b/pkgs/development/python-modules/limits/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "limits";
-  version = "1.2.1";
+  version = "1.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0dfbrmqixsvhvzqgd4s8rfj933k1w5q4bm23pp9zyp70xlb0mfmd";
+    sha256 = "a017b8d9e9da6761f4574642149c337f8f540d4edfe573fb91ad2c4001a2bc76";
   };
 
   propagatedBuildInputs = [ six ];
diff --git a/pkgs/development/python-modules/magic-wormhole/default.nix b/pkgs/development/python-modules/magic-wormhole/default.nix
index b21643b4547a..6afe4cba00d4 100644
--- a/pkgs/development/python-modules/magic-wormhole/default.nix
+++ b/pkgs/development/python-modules/magic-wormhole/default.nix
@@ -22,12 +22,12 @@
 
 buildPythonPackage rec {
   pname = "magic-wormhole";
-  version = "0.10.3";
+  version = "0.10.4";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "48465d58f9c0d729dc586627cf280830e7ed59f9e7999946ae1d763c6b8db999";
+    sha256 = "cd3105975e71bc6437848c7fc9f0b23ef0e0c625c8b19ec66a5ddc727c6d11ae";
   };
 
   checkInputs = [ mock ];
diff --git a/pkgs/development/python-modules/matplotlib/default.nix b/pkgs/development/python-modules/matplotlib/default.nix
index 49bdfa8dc087..3579c22e92b9 100644
--- a/pkgs/development/python-modules/matplotlib/default.nix
+++ b/pkgs/development/python-modules/matplotlib/default.nix
@@ -21,13 +21,13 @@ assert enableTk -> (tcl != null)
 assert enableQt -> pyqt4 != null;
 
 buildPythonPackage rec {
-  version = "2.1.1";
+  version = "2.1.2";
   pname = "matplotlib";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/m/matplotlib/${name}.tar.gz";
-    sha256 = "659f5e1aa0e0f01488c61eff47560c43b8be511c6a29293d7f3896ae17bd8b23";
+    sha256 = "725a3f12739d133adfa381e1b33bd70c6f64db453bfc536e148824816e568894";
   };
 
   NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.isDarwin "-I${libcxx}/include/c++/v1";
diff --git a/pkgs/development/python-modules/nbxmpp/default.nix b/pkgs/development/python-modules/nbxmpp/default.nix
index 26525adb1c96..295354003baf 100644
--- a/pkgs/development/python-modules/nbxmpp/default.nix
+++ b/pkgs/development/python-modules/nbxmpp/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "nbxmpp";
-  version = "0.6.2";
+  version = "0.6.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "10bfb12b083a7509779298c31b4b61e2ed7e78d1960cbcfb3de8d38f3b830991";
+    sha256 = "dd66e701a4856e3cace8f4865837ccc9bcfcdb286df01f01aa19531f5d834a83";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/python-modules/nipype/default.nix b/pkgs/development/python-modules/nipype/default.nix
index 8ee6eeb104b4..a38f23d5536f 100644
--- a/pkgs/development/python-modules/nipype/default.nix
+++ b/pkgs/development/python-modules/nipype/default.nix
@@ -29,11 +29,11 @@ assert !isPy3k -> configparser != null;
 
 buildPythonPackage rec {
   pname = "nipype";
-  version = "0.14.0";
+  version = "1.0.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0airdrh93vwmbfkqxp5cqfzm0zzqcvjnvphv3zhg197y39xxpl1k";
+    sha256 = "4c14c6cae1f530f89d76fa8136d52488b1daf3a02179da65121b76eaf4a6f0ea";
   };
 
   doCheck = false;  # fails with TypeError: None is not callable
diff --git a/pkgs/development/python-modules/notebook/default.nix b/pkgs/development/python-modules/notebook/default.nix
index 77ff31934c3f..be5a798b6c6d 100644
--- a/pkgs/development/python-modules/notebook/default.nix
+++ b/pkgs/development/python-modules/notebook/default.nix
@@ -23,11 +23,11 @@
 
 buildPythonPackage rec {
   pname = "notebook";
-  version = "5.3.1";
+  version = "5.4.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "12vk3shylx61whdchxbg71mdlwiw2l31vl227sqwpb0p67bbw2rq";
+    sha256 = "dd431fad9bdd25aa9ff8265da096ef770475e21bf1d327982611a7de5cd904ca";
   };
 
   LC_ALL = "en_US.utf8";
diff --git a/pkgs/development/python-modules/olefile/default.nix b/pkgs/development/python-modules/olefile/default.nix
index 5cf51b841329..23b470ed90ff 100644
--- a/pkgs/development/python-modules/olefile/default.nix
+++ b/pkgs/development/python-modules/olefile/default.nix
@@ -1,13 +1,13 @@
 { stdenv, buildPythonPackage, fetchPypi }:
 buildPythonPackage rec {
   pname = "olefile";
-  version = "0.44";
+  version = "0.45.1";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
     extension = "zip";
-    sha256 = "1bbk1xplmrhymqpk6rkb15sg7v9qfih7zh23p6g2fxxas06cmwk1";
+    sha256 = "2b6575f5290de8ab1086f8c5490591f7e0885af682c7c1793bdaf6e64078d385";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/python-modules/openpyxl/default.nix b/pkgs/development/python-modules/openpyxl/default.nix
index 9a94848000ce..fe13b575afc1 100644
--- a/pkgs/development/python-modules/openpyxl/default.nix
+++ b/pkgs/development/python-modules/openpyxl/default.nix
@@ -9,12 +9,12 @@
 
 buildPythonPackage rec {
   pname = "openpyxl";
-  version = "2.4.9";
+  version = "2.5.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "95e007f4d121f4fd73f39a6d74a883c75e9fa9d96de91d43c1641c103c3a9b18";
+    sha256 = "0ff2e0c2c85cbf42e82dd223e7f2401a62dc73c18cd9e5dd7763dc6c8014ebde";
   };
 
   checkInputs = [ pytest ];
diff --git a/pkgs/development/python-modules/ovh/default.nix b/pkgs/development/python-modules/ovh/default.nix
new file mode 100644
index 000000000000..3f37940ed8ae
--- /dev/null
+++ b/pkgs/development/python-modules/ovh/default.nix
@@ -0,0 +1,27 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+, nose
+, mock
+}:
+
+buildPythonPackage rec {
+  pname = "ovh";
+  version = "0.4.8";
+
+  # Needs yanc
+  doCheck = false;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "79fa4bdc61b9953af867676a9558d9e792b9fde568c980efe848a40565a217cd";
+  };
+
+  meta = {
+    description = "Thin wrapper around OVH's APIs";
+    homepage = http://api.ovh.com/;
+    license = lib.licenses.bsd2;
+    maintainers = [ lib.maintainers.makefu ];
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/packet-python/default.nix b/pkgs/development/python-modules/packet-python/default.nix
new file mode 100644
index 000000000000..5811d510dff9
--- /dev/null
+++ b/pkgs/development/python-modules/packet-python/default.nix
@@ -0,0 +1,38 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+, python
+, fetchpatch
+}:
+
+buildPythonPackage rec {
+  pname = "packet-python";
+  version = "1.37.1";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "316941d2473c0f42ac17ac89e9aa63a023bb96f35cf8eafe9e091ea424892778";
+  };
+  propagatedBuildInputs = [ requests ];
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover -s test
+  '';
+
+  patches = [
+    (fetchpatch {
+      url = https://github.com/packethost/packet-python/commit/361ad0c60d0bfce2a992eefd17e917f9dcf36400.patch;
+      sha256 = "1cmzyq0302y4cqmim6arnvn8n620qysq458g2w5aq4zj1vz1q9g1";
+    })
+  ];
+
+  # Not all test files are included in archive
+  doCheck = false;
+
+  meta = {
+    description = "A Python client for the Packet API.";
+    homepage    = "https://github.com/packethost/packet-python";
+    license     = lib.licenses.lgpl3;
+    maintainers = with lib.maintainers; [ dipinhora ];
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/pecan/default.nix b/pkgs/development/python-modules/pecan/default.nix
index b6e022640cbd..688c75e570f5 100644
--- a/pkgs/development/python-modules/pecan/default.nix
+++ b/pkgs/development/python-modules/pecan/default.nix
@@ -17,7 +17,7 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "pecan";
-  version = "1.2.1";
+  version = "1.3.2";
 
   patches = [
     ./python36_test_fix.patch
@@ -25,7 +25,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0ikc32rd2hr8j2jxc0mllvdjvxydx3fwfp3z8sdxmkzdkixlb5cd";
+    sha256 = "24f06cf88a488b75f433e62b33c1c97e4575d0cd91eec9eec841a81cecfd6de3";
   };
 
   propagatedBuildInputs = [ singledispatch logutils ];
diff --git a/pkgs/development/python-modules/pendulum/default.nix b/pkgs/development/python-modules/pendulum/default.nix
index e75a264de3db..aa8e2d22b43e 100644
--- a/pkgs/development/python-modules/pendulum/default.nix
+++ b/pkgs/development/python-modules/pendulum/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pendulum";
-  version = "1.3.2";
+  version = "1.4.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1j6hdsdhhw4d6fy9byr0vyxqnb53ap8bh2a0cibl7p0ks0zvb14j";
+    sha256 = "e996c34fb101c9c6d88a839c19af74d7c067b92ed3371274efcf4d4b6dc160a6";
   };
 
   propagatedBuildInputs = [ dateutil pytzdata tzlocal ];
diff --git a/pkgs/development/python-modules/plotly/default.nix b/pkgs/development/python-modules/plotly/default.nix
index 75f1b0600778..bddff8e95f44 100644
--- a/pkgs/development/python-modules/plotly/default.nix
+++ b/pkgs/development/python-modules/plotly/default.nix
@@ -10,12 +10,12 @@
 
 buildPythonPackage rec {
   pname = "plotly";
-  version = "2.2.3";
+  version = "2.3.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "dadd2263f1c0449b248fd3742a077d9594935921a9597529be76d6a841237ab0";
+    sha256 = "95e72273699108f215886ab961dbf0890904d39583be39eabcd0788bc7ccf695";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/pycryptodome/default.nix b/pkgs/development/python-modules/pycryptodome/default.nix
index 9751eaf7ce79..a086658cd7b7 100644
--- a/pkgs/development/python-modules/pycryptodome/default.nix
+++ b/pkgs/development/python-modules/pycryptodome/default.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl, python, buildPythonPackage, gmp }:
 
 buildPythonPackage rec {
-  version = "3.4.7";
+  version = "3.4.9";
   pname = "pycryptodome";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://pypi/p/pycryptodome/${name}.tar.gz";
-    sha256 = "18d8dfe31bf0cb53d58694903e526be68f3cf48e6e3c6dfbbc1e7042b1693af7";
+    sha256 = "00cc7767c7bbe91f15a65a1b2ebe7a08002b8ae8221c1dcecc5c5c9ab6f79753";
   };
 
   meta = {
diff --git a/pkgs/development/python-modules/pycryptodomex/default.nix b/pkgs/development/python-modules/pycryptodomex/default.nix
index 35a7213306f9..8cc22c986e25 100644
--- a/pkgs/development/python-modules/pycryptodomex/default.nix
+++ b/pkgs/development/python-modules/pycryptodomex/default.nix
@@ -3,7 +3,7 @@
 buildPythonPackage rec {
   pname = "pycryptodomex";
   name = "${pname}-${version}";
-  version = "3.4.7";
+  version = "3.4.9";
 
   meta = {
     description = "A self-contained cryptographic library for Python";
@@ -13,6 +13,6 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "52aa2e540d06d63636e4b5356957c520611e28a88386bad4d18980e4b00e0b5a";
+    sha256 = "d078b67be76ccafa8b7cc391e87151b80b0ef9bfbeee8a95d286e522cc7537f7";
   };
 }
diff --git a/pkgs/development/python-modules/pyemd/default.nix b/pkgs/development/python-modules/pyemd/default.nix
index 1004d70476c9..a7430c94b480 100644
--- a/pkgs/development/python-modules/pyemd/default.nix
+++ b/pkgs/development/python-modules/pyemd/default.nix
@@ -3,11 +3,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "pyemd";
-  version = "0.4.4";
+  version = "0.5.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "13y06y7r1697cv4r430g45fxs40i2yk9xn0dk9nqlrpddw3a0mr4";
+    sha256 = "fc81c2116f8573e559dfbb8d73e03d9f73c22d0770559f406516984302e07e70";
   };
 
   propagatedBuildInputs = [ numpy ];
diff --git a/pkgs/development/python-modules/pylint/default.nix b/pkgs/development/python-modules/pylint/default.nix
index 79337663c627..194d91341d8a 100644
--- a/pkgs/development/python-modules/pylint/default.nix
+++ b/pkgs/development/python-modules/pylint/default.nix
@@ -4,11 +4,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "pylint";
-  version = "1.8.1";
+  version = "1.8.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "3035e44e37cd09919e9edad5573af01d7c6b9c52a0ebb4781185ae7ab690458b";
+    sha256 = "4fe3b99da7e789545327b75548cee6b511e4faa98afe268130fea1af4b5ec022";
   };
 
   buildInputs = [ pytest pytestrunner mccabe configparser backports_functools_lru_cache ];
diff --git a/pkgs/development/python-modules/pyopenssl/default.nix b/pkgs/development/python-modules/pyopenssl/default.nix
new file mode 100644
index 000000000000..f3054e3e4dd4
--- /dev/null
+++ b/pkgs/development/python-modules/pyopenssl/default.nix
@@ -0,0 +1,46 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, openssl
+, cryptography
+, pyasn1
+, idna
+, pytest
+, pretend
+, flaky
+, glibcLocales
+}:
+
+buildPythonPackage rec {
+  pname = "pyOpenSSL";
+  version = "17.5.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "2c10cfba46a52c0b0950118981d61e72c1e5b1aac451ca1bc77de1a679456773";
+  };
+
+  outputs = [ "out" "dev" ];
+
+  preCheck = ''
+    sed -i 's/test_set_default_verify_paths/noop/' tests/test_ssl.py
+    # https://github.com/pyca/pyopenssl/issues/692
+    sed -i 's/test_fallback_default_verify_paths/noop/' tests/test_ssl.py
+  '';
+
+  checkPhase = ''
+    runHook preCheck
+    export LANG="en_US.UTF-8"
+    py.test
+    runHook postCheck
+  '';
+
+  # Seems to fail unpredictably on Darwin. See http://hydra.nixos.org/build/49877419/nixlog/1
+  # for one example, but I've also seen ContextTests.test_set_verify_callback_exception fail.
+  doCheck = !stdenv.isDarwin;
+
+  buildInputs = [ openssl ];
+  propagatedBuildInputs = [ cryptography pyasn1 idna ];
+
+  checkInputs = [ pytest pretend flaky glibcLocales ];
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/pyqt/5.x.nix b/pkgs/development/python-modules/pyqt/5.x.nix
index 053824ef8e95..225da204e21a 100644
--- a/pkgs/development/python-modules/pyqt/5.x.nix
+++ b/pkgs/development/python-modules/pyqt/5.x.nix
@@ -6,14 +6,13 @@
 
 let
   pname = "PyQt";
-  version = "5.9.2";
+  version = "5.10";
 
   inherit (pythonPackages) buildPythonPackage python dbus-python sip;
 in buildPythonPackage {
   pname = pname;
   version = version;
   format = "other";
-  name = pname + "-" + version;
 
   meta = with lib; {
     description = "Python bindings for Qt5";
@@ -25,10 +24,10 @@ in buildPythonPackage {
 
   src = fetchurl {
     url = "mirror://sourceforge/pyqt/PyQt5/PyQt-${version}/PyQt5_gpl-${version}.tar.gz";
-    sha256 = "15439gxari6azbfql20ksz8h4gv23k3kfyjyr89h2yy9k32xm461";
+    sha256 = "0l2zy6b7bfjxmg4bb8yikg6i8iy2xdwmvk7knfmrzfpqbmkycbrl";
   };
 
-  nativeBuildInputs = [ pkgconfig makeWrapper qmake ];
+  nativeBuildInputs = [ pkgconfig qmake ];
 
   buildInputs = [
     lndir qtbase qtsvg qtwebkit qtwebengine dbus_libs
@@ -43,10 +42,10 @@ in buildPythonPackage {
     lndir ${dbus-python} $out
     rm -rf "$out/nix-support"
 
-    export PYTHONPATH=$PYTHONPATH:$out/lib/${python.libPrefix}/site-packages
+    export PYTHONPATH=$PYTHONPATH:$out/${python.sitePackages}
 
     substituteInPlace configure.py \
-      --replace 'install_dir=pydbusmoddir' "install_dir='$out/lib/${python.libPrefix}/site-packages/dbus/mainloop'" \
+      --replace 'install_dir=pydbusmoddir' "install_dir='$out/${python.sitePackages}/dbus/mainloop'" \
       --replace "ModuleMetadata(qmake_QT=['webkitwidgets'])" "ModuleMetadata(qmake_QT=['webkitwidgets', 'printsupport'])"
 
     ${python.executable} configure.py  -w \
diff --git a/pkgs/development/python-modules/pytest/default.nix b/pkgs/development/python-modules/pytest/default.nix
index 91e22baa4ad1..9b7f5cc12de0 100644
--- a/pkgs/development/python-modules/pytest/default.nix
+++ b/pkgs/development/python-modules/pytest/default.nix
@@ -2,7 +2,7 @@
 , setuptools_scm, setuptools, six, pluggy, funcsigs, isPy3k
 }:
 buildPythonPackage rec {
-  version = "3.3.2";
+  version = "3.4.0";
   pname = "pytest";
 
   preCheck = ''
@@ -12,7 +12,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "53548280ede7818f4dc2ad96608b9f08ae2cc2ca3874f2ceb6f97e3583f25bc4";
+    sha256 = "6074ea3b9c999bd6d0df5fa9d12dd95ccd23550df2a582f5f5b848331d2e82ca";
   };
 
   checkInputs = [ hypothesis ];
diff --git a/pkgs/development/python-modules/pytz/default.nix b/pkgs/development/python-modules/pytz/default.nix
new file mode 100644
index 000000000000..96f0ad136a06
--- /dev/null
+++ b/pkgs/development/python-modules/pytz/default.nix
@@ -0,0 +1,23 @@
+{ lib, buildPythonPackage, fetchPypi, python }:
+
+buildPythonPackage rec {
+  pname = "pytz";
+  version = "2017.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    extension = "zip";
+    sha256 = "fae4cffc040921b8a2d60c6cf0b5d662c1190fe54d718271db4eb17d44a185b7";
+  };
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover -s pytz/tests
+  '';
+
+  meta = with lib; {
+    description = "World timezone definitions, modern and historical";
+    homepage = "http://pythonhosted.org/pytz";
+    license = licenses.mit;
+    maintainers = with maintainers; [ dotlambda ];
+  };
+}
diff --git a/pkgs/development/python-modules/pytzdata/default.nix b/pkgs/development/python-modules/pytzdata/default.nix
index 6de0431edb36..a7c6b6db6b25 100644
--- a/pkgs/development/python-modules/pytzdata/default.nix
+++ b/pkgs/development/python-modules/pytzdata/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pytzdata";
-  version = "2017.3.1";
+  version = "2018.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1wi3jh39zsa9iiyyhynhj7w5b2p9wdyd0ppavpsrmf3wxvr7cwz8";
+    sha256 = "4e2cceb54335cd6c28caea46b15cd592e2aec5e8b05b0241cbccfb1b23c02ae7";
   };
 
   # No tests
diff --git a/pkgs/development/python-modules/pyyaml/default.nix b/pkgs/development/python-modules/pyyaml/default.nix
new file mode 100644
index 000000000000..a4918bf352dc
--- /dev/null
+++ b/pkgs/development/python-modules/pyyaml/default.nix
@@ -0,0 +1,20 @@
+{ lib, buildPythonPackage, fetchPypi, libyaml }:
+
+buildPythonPackage rec {
+  pname = "PyYAML";
+  version = "3.12";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "592766c6303207a20efc445587778322d7f73b161bd994f227adaa341ba212ab";
+  };
+
+  propagatedBuildInputs = [ libyaml ];
+
+  meta = with lib; {
+    description = "The next generation YAML parser and emitter for Python";
+    homepage = https://github.com/yaml/pyyaml;
+    license = licenses.mit;
+    maintainers = with maintainers; [ dotlambda ];
+  };
+}
diff --git a/pkgs/development/python-modules/quantities/default.nix b/pkgs/development/python-modules/quantities/default.nix
new file mode 100644
index 000000000000..e65329c1b695
--- /dev/null
+++ b/pkgs/development/python-modules/quantities/default.nix
@@ -0,0 +1,28 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, numpy
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "quantities";
+  version = "0.12.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0a03e8511db603c57ca80dee851c43f08d0457f4d592bcac2e154570756cb934";
+  };
+
+  propagatedBuildInputs = [ numpy ];
+
+  checkPhase = ''
+    ${python.interpreter} setup.py test -V 1
+  '';
+
+  meta = {
+    description = "Quantities is designed to handle arithmetic and";
+    homepage = http://python-quantities.readthedocs.io/;
+    license = lib.licenses.bsd2;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/requestsexceptions/default.nix b/pkgs/development/python-modules/requestsexceptions/default.nix
index 0321f9abec2c..87af0e78b183 100644
--- a/pkgs/development/python-modules/requestsexceptions/default.nix
+++ b/pkgs/development/python-modules/requestsexceptions/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "requestsexceptions";
-  version = "1.3.0";
+  version = "1.4.0";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0gim00vi7vfq16y8b9m1vpy01grqvrdrbh88jb98qx6n6sk1n54g";
+    sha256 = "b095cbc77618f066d459a02b137b020c37da9f46d9b057704019c9f77dba3065";
   };
 
   propagatedBuildInputs = [ pbr ];
diff --git a/pkgs/development/python-modules/restview/default.nix b/pkgs/development/python-modules/restview/default.nix
index 3c61ea4ded24..a13df64cd03e 100644
--- a/pkgs/development/python-modules/restview/default.nix
+++ b/pkgs/development/python-modules/restview/default.nix
@@ -10,11 +10,11 @@
 buildPythonPackage rec {
   pname = "restview";
   name = "${pname}-${version}";
-  version = "2.8.0";
+  version = "2.8.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "5f6f1523228eab3269f59dd03ac560f7d370cd81df6fdbcb4914b5e6bd896a11";
+    sha256 = "45320b4e52945d23b3f1aeacc7ff97a3b798204fe625f8b81ed5322326d5bcd1";
   };
 
   propagatedBuildInputs = [ docutils readme_renderer pygments ];
diff --git a/pkgs/development/python-modules/shapely/default.nix b/pkgs/development/python-modules/shapely/default.nix
index dab3542b809e..7246205619f1 100644
--- a/pkgs/development/python-modules/shapely/default.nix
+++ b/pkgs/development/python-modules/shapely/default.nix
@@ -6,11 +6,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "Shapely";
-  version = "1.6.3";
+  version = "1.6.4.post1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "14152f111c7711fc6756fd538ec12fc8cdde7419f869b244922f71f61b2a6c6b";
+    sha256 = "30df7572d311514802df8dc0e229d1660bc4cbdcf027a8281e79c5fc2fcf02f2";
   };
 
   buildInputs = [ geos glibcLocales cython ];
diff --git a/pkgs/development/python-modules/simplegeneric/default.nix b/pkgs/development/python-modules/simplegeneric/default.nix
new file mode 100644
index 000000000000..491e218154c0
--- /dev/null
+++ b/pkgs/development/python-modules/simplegeneric/default.nix
@@ -0,0 +1,21 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "simplegeneric";
+  version = "0.8.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    extension = "zip";
+    sha256 = "dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173";
+  };
+
+  meta = {
+    description = "Simple generic functions";
+    homepage = http://cheeseshop.python.org/pypi/simplegeneric;
+    license = lib.licenses.zpl21;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/sqlalchemy/default.nix b/pkgs/development/python-modules/sqlalchemy/default.nix
index 175aa4a6c3ab..51856ec0da04 100644
--- a/pkgs/development/python-modules/sqlalchemy/default.nix
+++ b/pkgs/development/python-modules/sqlalchemy/default.nix
@@ -11,11 +11,11 @@
 buildPythonPackage rec {
   pname = "SQLAlchemy";
   name = "${pname}-${version}";
-  version = "1.2.1";
+  version = "1.2.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9ede7070d6fd18f28058be88296ed67893e2637465516d6a596cd9afea97b154";
+    sha256 = "64b4720f0a8e033db0154d3824f5bf677cf2797e11d44743cf0aebd2a0499d9d";
   };
 
   checkInputs = [
diff --git a/pkgs/development/python-modules/sybil/default.nix b/pkgs/development/python-modules/sybil/default.nix
index 1370c59ace84..31fd0977c144 100644
--- a/pkgs/development/python-modules/sybil/default.nix
+++ b/pkgs/development/python-modules/sybil/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonApplication rec {
   pname   = "sybil";
-  version = "1.0.6";
+  version = "1.0.7";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "5bd7dd09eff68cbec9062e6950124fadfaaccbc0f50b23c1037f4d70ae86f0f1";
+    sha256 = "86332553392f865403883e44695bd8d9d47fe3887c01e17591955237b8fd2d8f";
   };
 
   checkInputs = [ pytest nose ];
diff --git a/pkgs/development/python-modules/sympy/default.nix b/pkgs/development/python-modules/sympy/default.nix
new file mode 100644
index 000000000000..67c799e554eb
--- /dev/null
+++ b/pkgs/development/python-modules/sympy/default.nix
@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, glibcLocales
+, mpmath
+}:
+
+buildPythonPackage rec {
+  pname = "sympy";
+  version = "1.1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "ac5b57691bc43919dcc21167660a57cc51797c28a4301a6144eff07b751216a4";
+  };
+
+  checkInputs = [ glibcLocales ];
+
+  propagatedBuildInputs = [ mpmath ];
+
+  # Bunch of failures including transients.
+  doCheck = false;
+
+  preCheck = ''
+    export LANG="en_US.UTF-8"
+  '';
+
+  meta = {
+    description = "A Python library for symbolic mathematics";
+    homepage    = http://www.sympy.org/;
+    license     = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ lovek323 ];
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/testfixtures/default.nix b/pkgs/development/python-modules/testfixtures/default.nix
index 498c722a0464..933b4be1caf3 100644
--- a/pkgs/development/python-modules/testfixtures/default.nix
+++ b/pkgs/development/python-modules/testfixtures/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "testfixtures";
-  version = "5.3.1";
+  version = "5.4.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "670ade9410b7132278209e6a2e893caf098b040c4ba4d5ea848367a9c5588728";
+    sha256 = "338aed9695c432b7c9b8a271dabb521e3e7e2c96b11f7b4e60552f1c8408a8f0";
   };
 
   checkInputs = [ mock manuel pytest sybil zope_component ];
diff --git a/pkgs/development/python-modules/thespian/default.nix b/pkgs/development/python-modules/thespian/default.nix
index 1a2aced6858b..e4ed824d2302 100644
--- a/pkgs/development/python-modules/thespian/default.nix
+++ b/pkgs/development/python-modules/thespian/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchPypi, buildPythonPackage, lib }:
 
 buildPythonPackage rec {
-  version = "3.9.1";
+  version = "3.9.2";
   pname = "thespian";
   name = "${pname}-${version}";
 
   src = fetchPypi {
     inherit pname version;
     extension = "zip";
-    sha256 = "0b303bv85176xd5mf3q5j549s28wi70ck2xxgj1cvpydh23dzipb";
+    sha256 = "aec9793fecf45bb91fe919dc61b5c48a4aadfb9f94b06cd92883df7952eacf95";
   };
 
   # Do not run the test suite: it takes a long time and uses
diff --git a/pkgs/development/python-modules/tifffile/default.nix b/pkgs/development/python-modules/tifffile/default.nix
index b0c3131785f3..12edef190dcc 100644
--- a/pkgs/development/python-modules/tifffile/default.nix
+++ b/pkgs/development/python-modules/tifffile/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "tifffile";
-  version = "0.13.4";
+  version = "0.13.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "43d3903e8ea4542aaa4759ec3683641555d3a15e68fa5a41aaf14cce4110641a";
+    sha256 = "bca0fc9eaf609a27ebd99d8466e05d5a6e79389957f17582b70643dbca65e3d8";
   };
 
   checkInputs = [ nose ];
diff --git a/pkgs/development/python-modules/typing/default.nix b/pkgs/development/python-modules/typing/default.nix
new file mode 100644
index 000000000000..d1a9185d5a14
--- /dev/null
+++ b/pkgs/development/python-modules/typing/default.nix
@@ -0,0 +1,29 @@
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, isPy3k, python }:
+
+let
+  testDir = if isPy3k then "src" else "python2";
+
+in buildPythonPackage rec {
+  pname = "typing";
+  version = "3.6.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "d400a9344254803a2368533e4533a4200d21eb7b6b729c173bc38201a74db3f2";
+  };
+
+  # Error for Python3.6: ImportError: cannot import name 'ann_module'
+  # See https://github.com/python/typing/pull/280
+  doCheck = pythonOlder "3.6";
+
+  checkPhase = ''
+    cd ${testDir}
+    ${python.interpreter} -m unittest discover
+  '';
+
+  meta = with lib; {
+    description = "Backport of typing module to Python versions older than 3.5";
+    homepage = https://docs.python.org/3/library/typing.html;
+    license = licenses.psfl;
+  };
+}
diff --git a/pkgs/development/python-modules/webcolors/default.nix b/pkgs/development/python-modules/webcolors/default.nix
new file mode 100644
index 000000000000..c23bffaf142f
--- /dev/null
+++ b/pkgs/development/python-modules/webcolors/default.nix
@@ -0,0 +1,25 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "webcolors";
+  version = "1.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "e47e68644d41c0b1f1e4d939cfe4039bdf1ab31234df63c7a4f59d4766487206";
+  };
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover -s tests
+  '';
+
+  meta = {
+    description = "Library for working with color names/values defined by the HTML and CSS specifications";
+    homepage = https://bitbucket.org/ubernostrum/webcolors/overview/;
+    license = lib.licenses.bsd3;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/development/python-modules/widgetsnbextension/default.nix b/pkgs/development/python-modules/widgetsnbextension/default.nix
index ab63b444af6d..e455f2334110 100644
--- a/pkgs/development/python-modules/widgetsnbextension/default.nix
+++ b/pkgs/development/python-modules/widgetsnbextension/default.nix
@@ -8,11 +8,11 @@
 buildPythonPackage rec {
   pname = "widgetsnbextension";
   name = "${pname}-${version}";
-  version = "3.1.0";
+  version = "3.1.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "67fc28c3b9fede955d69bccbd92784e3f0c6d0dee3a71532cd3367c257feb178";
+    sha256 = "02edabcaeaa247721df8027f660f3384c20f30c4865a7ea5dd80685c368736df";
   };
 
   propagatedBuildInputs = [ notebook ];
diff --git a/pkgs/tools/admin/awscli/default.nix b/pkgs/tools/admin/awscli/default.nix
index bad9ccae799d..ef5afb917663 100644
--- a/pkgs/tools/admin/awscli/default.nix
+++ b/pkgs/tools/admin/awscli/default.nix
@@ -26,12 +26,12 @@ let
 
 in buildPythonPackage rec {
   pname = "awscli";
-  version = "1.14.29";
+  version = "1.14.32";
   namePrefix = "";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "96edb1dd72fbc13638967fe07c436e95133169759cc962b973bb79ba959bc652";
+    sha256 = "09i82nf43pv5v598wvbj4nk1bfc64wp7xzlx5ykaca5m40lkarz0";
   };
 
   # No tests included
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c697f3449d4a..fb7718a0c07e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2796,65 +2796,9 @@ in {
     };
   };
 
-  cryptography = buildPythonPackage rec {
-    # also bump cryptography_vectors
-    pname = "cryptography";
-    name = "${pname}-${version}";
-    version = "2.0.3";
+  cryptography = callPackage ../development/python-modules/cryptography { };
 
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "d04bb2425086c3fe86f7bc48915290b13e798497839fbb18ab7f6dffcf98cc3a";
-    };
-
-    outputs = [ "out" "dev" ];
-
-    buildInputs = [ pkgs.openssl self.cryptography_vectors ]
-               ++ optional stdenv.isDarwin pkgs.darwin.apple_sdk.frameworks.Security;
-    propagatedBuildInputs = with self; [
-      idna
-      asn1crypto
-      packaging
-      six
-    ] ++ optional (pythonOlder "3.4") enum34
-    ++ optional (pythonOlder "3.3") ipaddress
-    ++ optional (!isPyPy) cffi;
-
-    checkInputs = with self; [
-      pytest
-      pretend
-      iso8601
-      pytz
-      hypothesis
-    ];
-
-    # The test assumes that if we're on Sierra or higher, that we use `getentropy`, but for binary
-    # compatibility with pre-Sierra for binary caches, we hide that symbol so the library doesn't
-    # use it. This boils down to them checking compatibility with `getentropy` in two different places,
-    # so let's neuter the second test.
-    postPatch = ''
-      substituteInPlace ./tests/hazmat/backends/test_openssl.py --replace '"16.0"' '"99.0"'
-    '';
-
-    # IOKit's dependencies are inconsistent between OSX versions, so this is the best we
-    # can do until nix 1.11's release
-    __impureHostDeps = [ "/usr/lib" ];
-  };
-
-  cryptography_vectors = buildPythonPackage rec {
-      # also bump cryptography
-    pname = "cryptography_vectors";
-    version = self.cryptography.version;
-    name = "${pname}-${version}";
-
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "beb831aa73663a224f4d7520483ed02da544533bb03b26ec07a5f9a0dd0941e1";
-    };
-
-    # No tests included
-    doCheck = false;
-  };
+  cryptography_vectors = callPackage ../development/python-modules/cryptography_vectors { };
 
   curtsies = callPackage ../development/python-modules/curtsies { };
 
@@ -3217,9 +3161,9 @@ in {
     };
   };
 
-  pytest = self.pytest_33;
+  pytest = self.pytest_34;
 
-  pytest_33 = callPackage ../development/python-modules/pytest/default.nix{
+  pytest_34 = callPackage ../development/python-modules/pytest/default.nix{
     hypothesis = self.hypothesis.override {
       # hypothesis requires pytest that causes dependency cycle
       doCheck = false;
@@ -13784,17 +13728,6 @@ in {
 
   pygments = callPackage ../development/python-modules/Pygments { };
 
-  # For Pelican 3.6.3
-  pygments_2_0 = self.pygments.overrideAttrs( oldAttrs: rec {
-    version = "2.0.2";
-    name = "Pygments-${version}";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/P/Pygments/${name}.tar.gz";
-      sha256 = "7320919084e6dac8f4540638a46447a3bd730fca172afc17d2c03eed22cf4f51";
-    };
-  });
-
   pygpgme = callPackage ../development/python-modules/pygpgme { };
 
   pylint = callPackage ../development/python-modules/pylint { };
@@ -14644,39 +14577,7 @@ in {
     doCheck = false;
   };
 
-  pyopenssl = buildPythonPackage rec {
-    pname = "pyOpenSSL";
-    name = "${pname}-${version}";
-    version = "17.2.0";
-
-    src = self.fetchPypi {
-      inherit pname version;
-      sha256 = "0d283g4zi0hr9papd24mjl70mi15gyzq6fx618rizi87dgipqqax";
-    };
-
-    outputs = [ "out" "dev" ];
-
-    preCheck = ''
-      sed -i 's/test_set_default_verify_paths/noop/' tests/test_ssl.py
-      # https://github.com/pyca/pyopenssl/issues/692
-      sed -i 's/test_fallback_default_verify_paths/noop/' tests/test_ssl.py
-    '';
-
-    checkPhase = ''
-      runHook preCheck
-      export LANG="en_US.UTF-8"
-      py.test
-      runHook postCheck
-    '';
-
-    # Seems to fail unpredictably on Darwin. See http://hydra.nixos.org/build/49877419/nixlog/1
-    # for one example, but I've also seen ContextTests.test_set_verify_callback_exception fail.
-    doCheck = !stdenv.isDarwin;
-
-    buildInputs = [ pkgs.openssl self.pytest pkgs.glibcLocales self.pretend self.flaky ];
-    propagatedBuildInputs = [ self.cryptography self.pyasn1 self.idna ];
-  };
-
+  pyopenssl = callPackage ../development/python-modules/pyopenssl { };
 
   pyquery = buildPythonPackage rec {
     name = "pyquery-${version}";
@@ -14943,27 +14844,7 @@ in {
     };
   };
 
-  pytz = buildPythonPackage rec {
-    name = "${pname}-${version}";
-    pname = "pytz";
-    version = "2017.2";
-
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "12cmd3j46d2gcw08bspvp6s9icfcvx88zjz52n1bli9dyvl5dh7m";
-      extension = "zip";
-    };
-
-    checkPhase = ''
-      python -m unittest discover -s pytz/tests
-    '';
-
-    meta = {
-      description = "World timezone definitions, modern and historical";
-      homepage = "http://pythonhosted.org/pytz";
-      license = licenses.mit;
-    };
-  };
+  pytz = callPackage ../development/python-modules/pytz { };
 
   pytzdata = callPackage ../development/python-modules/pytzdata { };
 
@@ -15034,23 +14915,7 @@ in {
 
   pyaml = callPackage ../development/python-modules/pyaml { };
 
-  pyyaml = buildPythonPackage (rec {
-    name = "PyYAML-3.12";
-
-    src = pkgs.fetchurl {
-      url = "http://pyyaml.org/download/pyyaml/${name}.zip";
-      sha256 = "19s1lxi0idq4a0bpvld866pv5b16lqxypyswmsdi5ys4210jxj2s";
-    };
-
-    buildInputs = with self; [ pkgs.pyrex ];
-    propagatedBuildInputs = with self; [ pkgs.libyaml ];
-
-    meta = {
-      description = "The next generation YAML parser and emitter for Python";
-      homepage = http://pyyaml.org;
-      license = licenses.free; # !?
-    };
-  });
+  pyyaml = callPackage ../development/python-modules/pyyaml { };
 
   rabbitpy = buildPythonPackage rec {
     version = "0.26.2";
@@ -15221,20 +15086,7 @@ in {
 
   qtpy = callPackage ../development/python-modules/qtpy { };
 
-  quantities = buildPythonPackage rec {
-    name = "quantities-0.10.1";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/q/quantities/quantities-0.10.1.tar.gz";
-      sha256 = "2d27caf31a5e0c37130ac0c14bfa8f9412a5ff1fbf3378a1d6085594776c4315";
-    };
-
-    meta = with pkgs.stdenv.lib; {
-      description = "Quantities is designed to handle arithmetic and";
-      homepage = http://packages.python.org/quantities;
-      license = licenses.bsd2;
-    };
-  };
+  quantities = callPackage ../development/python-modules/quantities { };
 
   qutip = buildPythonPackage rec {
     name = "qutip-2.2.0";
@@ -15713,21 +15565,7 @@ in {
     };
   };
 
-  typing = buildPythonPackage rec {
-    name = "typing-${version}";
-    version = "3.5.3.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/t/typing/${name}.tar.gz";
-      sha256 = "08gz3grrh3vph5ib1w5x1ssnpzvj077x030lx63fxs4kwg3slbfa";
-    };
-
-    meta = {
-      description = "Backport of typing module to Python versions older than 3.5";
-      homepage = "https://docs.python.org/3.5/library/typing.html";
-      license = licenses.psfl;
-    };
-  };
+  typing = callPackage ../development/python-modules/typing { };
 
   typeguard = callPackage ../development/python-modules/typeguard { };
 
@@ -15970,22 +15808,7 @@ in {
     };
   };
 
-  simplegeneric = buildPythonPackage rec {
-    version = "0.8.1";
-    name = "simplegeneric-${version}";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/s/simplegeneric/${name}.zip";
-      sha256 = "dc972e06094b9af5b855b3df4a646395e43d1c9d0d39ed345b7393560d0b9173";
-    };
-
-    meta = {
-      description = "Simple generic functions";
-      homepage = http://cheeseshop.python.org/pypi/simplegeneric;
-      license = licenses.zpl21;
-    };
-  };
-
+  simplegeneric = callPackage ../development/python-modules/simplegeneric { };
 
   shortuuid = buildPythonPackage rec {
     name = "shortuuid-${version}";
@@ -16467,33 +16290,7 @@ in {
     };
   };
 
-  sympy = buildPythonPackage rec {
-    name = "sympy-1.0";
-
-    src = pkgs.fetchurl {
-      url    = "mirror://pypi/s/sympy/${name}.tar.gz";
-      sha256 = "1bpzjwr9hrr7w88v4vgnj9lr6vxcldc94si13n8xpr1rv08d5b1y";
-    };
-
-    buildInputs = [ pkgs.glibcLocales ];
-
-    propagatedBuildInputs = with self; [ mpmath ];
-
-    # Bunch of failures including transients.
-    doCheck = false;
-
-    preCheck = ''
-      export LANG="en_US.UTF-8"
-    '';
-
-    meta = {
-      description = "A Python library for symbolic mathematics";
-      homepage    = http://www.sympy.org/;
-      license     = licenses.bsd3;
-      maintainers = with maintainers; [ lovek323 ];
-      platforms   = platforms.unix;
-    };
-  };
+  sympy = callPackage ../development/python-modules/sympy { };
 
   pilkit = buildPythonPackage rec {
     name = "pilkit-1.1.4";
@@ -18329,24 +18126,7 @@ EOF
     };
   };
 
-  webcolors = buildPythonPackage rec {
-    name = "webcolors-1.4";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/w/webcolors/${name}.tar.gz";
-      sha256 = "304fc95dab2848c7bf64f378356766e692c2f8b4a8b15fa3509544e6412936e8";
-    };
-
-    # error: invalid command 'test'
-    doCheck = false;
-
-    meta = {
-      description = "Library for working with color names/values defined by the HTML and CSS specifications";
-      homepage = https://bitbucket.org/ubernostrum/webcolors/overview/;
-      license = licenses.bsd3;
-      platforms = platforms.unix;
-    };
-  };
+  webcolors = callPackage ../development/python-modules/webcolors { };
 
   webencodings = callPackage ../development/python-modules/webencodings { };
 
@@ -20552,21 +20332,7 @@ EOF
     };
   };
 
-  dicttoxml = buildPythonPackage rec {
-    name = "dicttoxml-1.6.4";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/d/dicttoxml/dicttoxml-1.6.4.tar.gz";
-      sha256 = "5f29e95fec56680823dc41911c04c2af08727ee53c1b60e83c489212bab71161";
-    };
-
-    propagatedBuildInputs = with self; [  ];
-
-    meta = {
-      description = "Summary";
-      homepage = https://github.com/quandyfactory/dicttoxml;
-    };
-  };
+  dicttoxml = callPackage ../development/python-modules/dicttoxml { };
 
   markdown2 = callPackage ../development/python-modules/markdown2 { };
 
@@ -21079,25 +20845,7 @@ EOF
     };
   };
 
-  ovh = buildPythonPackage rec {
-    name = "ovh-${version}";
-    version = "0.4.5";
-    doCheck = false; #test needs packages too explicit
-    buildInputs = with self; [ d2to1 ];
-    propagatedBuildInputs = with self; [ requests ];
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/o/ovh/ovh-${version}.tar.gz";
-      sha256 = "1wf2p1sbg34jpj97r3w5nx9pj6vp0mlprry3vw2xav3dv02qv2af";
-    };
-
-    meta = {
-      description = "Thin wrapper around OVH's APIs";
-      homepage = https://pypi.python.org/pypi/ovh;
-      license = licenses.bsd2;
-      maintainers = [ maintainers.makefu ];
-    };
-  };
+  ovh = callPackage ../development/python-modules/ovh { };
 
   willow = buildPythonPackage rec {
     name = "willow-${version}";
@@ -21761,26 +21509,6 @@ EOF
     };
   };
 
-  pybrain = buildPythonPackage rec {
-    name = "pybrain-${version}";
-    version = "0.3.3";
-
-    src = pkgs.fetchurl {
-      url = "https://github.com/pybrain/pybrain/archive/${version}.tar.gz";
-      sha256 = "114m99vsrps2gjqfm3i3kxx4nibjhjdzphsy2bhrxa5q3h2q14dz";
-    };
-
-    propagatedBuildInputs = with self; [ scipy ];
-
-    meta = {
-      homepage = "http://pybrain.org/";
-      description = "Modular Machine Learning Library for Python";
-      license = licenses.bsd3;
-      maintainers = with maintainers; [ NikolaMandic ];
-      broken = true; # See https://github.com/NixOS/nixpkgs/pull/29198
-    };
-  };
-
   threadpool = buildPythonPackage rec {
     name = "threadpool-${version}";
     version = "1.3.2";
@@ -22073,24 +21801,7 @@ EOF
 
   whoosh = callPackage ../development/python-modules/whoosh { };
 
-  packet-python = buildPythonPackage rec {
-    name = "${pname}-${version}";
-    pname = "packet-python";
-    version = "1.33";
-    src = pkgs.fetchurl {
-      url = "https://pypi.python.org/packages/eb/82/f0506bd964501f958ac6a37e843ccb7bd9e712732886258314d55f0ec710/packet-python-1.33.tar.gz";
-      sha256 = "0bmvfmvjm8jx0y8sv0jf5mhv0h3v8idx0sc5myxs7ig200584dd3";
-    };
-    propagatedBuildInputs = with self; [ requests ];
-
-    meta = {
-      description = "A Python client for the Packet API.";
-      homepage    = "https://github.com/packethost/packet-python";
-      license     = licenses.lgpl3;
-      maintainers = with maintainers; [ dipinhora ];
-      platforms   = platforms.all;
-    };
-  };
+  packet-python = callPackage ../development/python-modules/packet-python { };
 
   pwntools = callPackage ../development/python-modules/pwntools { };