pythonPackages.venvShellHook: init

This is a hook that loads a virtualenv from the specified `venvDir`
location. If the virtualenv does not exist, it is created.

pkgs/development/interpreters/python/hooks/default.nix

@@ -2,6 +2,9 @@
 { python
 , callPackage
 , makeSetupHook
+, disabledIf
+, isPy3k
+, ensureNewerSourcesForZipFilesHook
 }:
 
 let
@@ -109,6 +112,15 @@ in rec {
       };
     } ./setuptools-check-hook.sh) {};
 
+  venvShellHook = disabledIf (!isPy3k) (callPackage ({ }:
+    makeSetupHook {
+      name = "venv-shell-hook";
+      deps = [ ensureNewerSourcesForZipFilesHook ];
+      substitutions = {
+        inherit pythonInterpreter;
+    };
+  } ./venv-shell-hook.sh) {});
+
   wheelUnpackHook = callPackage ({ wheel }:
     makeSetupHook {
       name = "wheel-unpack-hook.sh";