Revert "Merge staging at '8d490ca9934d0' into master"

This reverts commit fc23242220, reversing
changes made to 754816b84b.
We don't have many binaries yet.  Comment on the original merge commit.

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

@@ -3,24 +3,32 @@
 , fetchPypi
 , nose
 , decorator
+, isPy36
+, isPyPy
 }:
 
 buildPythonPackage rec {
   pname = "networkx";
-  version = "2.1";
+  version = "1.11";
+
+  # Currently broken on PyPy.
+  # https://github.com/networkx/networkx/pull/1361
+  disabled = isPyPy;
 
   src = fetchPypi {
     inherit pname version;
-    extension = "zip";
-    sha256 = "64272ca418972b70a196cb15d9c85a5a6041f09a2f32e0d30c0255f25d458bb1";
+    sha256 = "1f74s56xb4ggixiq0vxyfxsfk8p20c7a099lpcf60izv1php03hd";
   };
 
   checkInputs = [ nose ];
   propagatedBuildInputs = [ decorator ];
 
+  # 17 failures with 3.6 https://github.com/networkx/networkx/issues/2396#issuecomment-304437299
+  doCheck = !(isPy36);
+
   meta = {
     homepage = "https://networkx.github.io/";
     description = "Library for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks";
     license = lib.licenses.bsd3;
   };
-}
+}