release: merge back stable branch into default

.hgtags

@@ -3,3 +3,4 b' 170c5398320ea6cddd50955e88d408794c21d43a'
 c3fe200198f5aa34cf2e4066df2881a9cefe3704 v4.1.0
 7fd5c850745e2ea821fb4406af5f4bff9b0a7526 v4.1.1
 41c87da28a179953df86061d817bc35533c66dd2 v4.1.2
+baaf9f5bcea3bae0ef12ae20c8b270482e62abb6 v4.2.0

pkgs/python-packages.nix

@@ -714,19 +714,6 b''
       license = [ { fullName = "LGPL"; } ];
     };
   };
-  greenlet = super.buildPythonPackage {
-    name = "greenlet-0.4.9";
-    buildInputs = with self; [];
-    doCheck = false;
-    propagatedBuildInputs = with self; [];
-    src = fetchurl {
-      url = "https://pypi.python.org/packages/4e/3d/9d421539b74e33608b245092870156b2e171fb49f2b51390aa4641eecb4a/greenlet-0.4.9.zip";
-      md5 = "c6659cdb2a5e591723e629d2eef22e82";
-    };
-    meta = {
-      license = [ pkgs.lib.licenses.mit ];
-    };
-  };
   gunicorn = super.buildPythonPackage {
     name = "gunicorn-19.6.0";
     buildInputs = with self; [];