anchor.diff:      stdenv.mkDerivation rec {
         name = "python-${moduleName}-${python.version}";
   
  -      inherit src patches;
  +      inherit src patches postPatch;
   
         buildInputs = [ python ] ++ deps;
   
  
positive.code:   python = stdenv.mkDerivation {
      name = "python-${version}";
  
      inherit majorVersion version src patches buildInputs;
  
      C_INCLUDE_PATH = concatStringsSep ":" (map (p: "${p}/include") buildInputs);
      LIBRARY_PATH = concatStringsSep ":" (map (p: "${p}/lib") buildInputs);
  
negative.code:       ./nix-store-mtime.patch
      ];
  
    postPatch = ''
      substituteInPlace ./Lib/plat-generic/regen \
                        --replace /usr/include/netinet/in.h \
                                  ${stdenv.gcc.libc}/include/netinet/in.h
    '';
  
    buildInputs =
      optional (stdenv ? gcc && stdenv.gcc.libc != null) stdenv.gcc.libc ++
      [ bzip2 ]
  