differs from the mtime of the source file. This doesn't work in Nix
because Nix changes the mtime of files in the Nix store to 1. So
treat that as a special case.
Yes, this should make Python programs faster.
svn path=/nixpkgs/branches/modular-python/; revision=25387
The python wrapper expression expects a list of Python modules, $extraLibs,
which are added to $PYTHONPATH before executing the actual Python interpreter.
svn path=/nixpkgs/trunk/; revision=23194