anchor.diff:    snuggs = callPackage ../development/python-modules/snuggs { };
   
     soapysdr = toPythonModule (pkgs.soapysdr.override {
  -    python = self.python;
  +    inherit (self) python;
       usePython = true;
     });
   
     soapysdr-with-plugins = toPythonModule (pkgs.soapysdr-with-plugins.override {
  -    python = self.python;
  +    inherit (self) python;
       usePython = true;
     });
   
  
positive.code:   pyctr = callPackage ../development/python-modules/pyctr { };
  
    pycuda = callPackage ../development/python-modules/pycuda {
      cudatoolkit = pkgs.cudatoolkit;
      inherit (pkgs.stdenv) mkDerivation;
    };
  
  
negative.code:   openapi-spec-validator = callPackage ../development/python-modules/openapi-spec-validator { };
  
    openbabel-bindings = callPackage ../development/python-modules/openbabel-bindings {
        openbabel = callPackage ../development/libraries/openbabel { inherit (self) python; };
    };
  
    opencv3 = toPythonModule (pkgs.opencv3.override {
  