Python: move expressions in python-modules to their own folders

pkgs/development/python-modules/pyudev/default.nix

@@ -0,0 +1,36 @@
+{ lib, fetchurl, buildPythonPackage
+, six, systemd, pytest, mock, hypothesis, docutils
+}:
+
+buildPythonPackage rec {
+  pname = "pyudev";
+  name = "${pname}-${version}";
+  version = "0.21.0";
+
+  src = fetchurl {
+    url = "mirror://pypi/p/pyudev/${name}.tar.gz";
+    sha256 = "0arz0dqp75sszsmgm6vhg92n1lsx91ihddx3m944f4ah0487ljq9";
+  };
+
+  postPatch = ''
+    substituteInPlace src/pyudev/_ctypeslib/utils.py \
+      --replace "find_library(name)" "'${systemd.lib}/lib/libudev.so'"
+    '';
+
+  buildInputs = [ pytest mock hypothesis docutils ];
+  propagatedBuildInputs = [ systemd six ];
+
+  checkPhase = ''
+    py.test
+  '';
+
+  # Bunch of failing tests
+  # https://github.com/pyudev/pyudev/issues/187
+  doCheck = false;
+
+  meta = {
+    homepage = http://pyudev.readthedocs.org/;
+    description = "Pure Python libudev binding";
+    license = lib.licenses.lgpl21Plus;
+  };
+}