pythonPackages.freezegun: pin to 0.3.5

pkgs/development/python-modules/freezegun/0.3.nix

@@ -0,0 +1,32 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, dateutil
+, six
+, mock
+, nose
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "freezegun";
+  version = "0.3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "02ly89wwn0plcw8clkkzvxaw6zlpm8qyqpm9x2mfw4a0vppb4ngf";
+  };
+
+  propagatedBuildInputs = [ dateutil six ];
+  checkInputs = [ mock nose pytest ];
+  # contains python3 specific code
+  doCheck = !isPy27;
+
+  meta = with stdenv.lib; {
+    description = "FreezeGun: Let your Python tests travel through time";
+    homepage = "https://github.com/spulec/freezegun";
+    license = licenses.asl20;
+  };
+
+}

pkgs/top-level/python-packages.nix

@@ -2268,7 +2268,10 @@ in {
 
   freetype-py = callPackage ../development/python-modules/freetype-py { };
 
-  freezegun = callPackage ../development/python-modules/freezegun { };
+  freezegun = if isPy27 then
+      callPackage ../development/python-modules/freezegun/0.3.nix { }
+    else
+      callPackage ../development/python-modules/freezegun { };
 
   fritzconnection = callPackage ../development/python-modules/fritzconnection { };