pythonPackages.vcrpy: add python2-compatible expression

pkgs/development/python-modules/vcrpy/3.nix

@@ -0,0 +1,48 @@
+{ buildPythonPackage
+, lib
+, six
+, fetchPypi
+, pyyaml
+, mock
+, contextlib2
+, wrapt
+, pytest
+, pytest-httpbin
+, yarl
+, pythonOlder
+, pythonAtLeast
+}:
+
+buildPythonPackage rec {
+  pname = "vcrpy";
+  version = "3.0.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "21168d5ae14263a833d4b71acfd8278d8841114f24be1b4ab4a5719d0c7f07bc";
+  };
+
+  checkInputs = [
+    pytest
+    pytest-httpbin
+  ];
+
+  propagatedBuildInputs = [
+    pyyaml
+    wrapt
+    six
+  ]
+  ++ lib.optionals (pythonOlder "3.3") [ contextlib2 mock ]
+  ++ lib.optionals (pythonAtLeast "3.4") [ yarl ];
+
+  checkPhase = ''
+    py.test --ignore=tests/integration -k "not TestVCRConnection"
+  '';
+
+  meta = with lib; {
+    description = "Automatically mock your HTTP interactions to simplify and speed up testing";
+    homepage = "https://github.com/kevin1024/vcrpy";
+    license = licenses.mit;
+  };
+}
+

pkgs/top-level/python-packages.nix

@@ -8363,7 +8363,10 @@ in {
 
   varint = callPackage ../development/python-modules/varint { };
 
-  vcrpy = callPackage ../development/python-modules/vcrpy { };
+  vcrpy = if isPy27 then
+    callPackage ../development/python-modules/vcrpy/3.nix { }
+  else
+    callPackage ../development/python-modules/vcrpy { };
 
   vcver = callPackage ../development/python-modules/vcver { };