anchor.diff:  { lib
  +, autopep8
   , buildPythonPackage
  -, python
  -, pythonAtLeast
  +, contextlib2
  +, django
  +, factory_boy
   , fetchFromGitHub
   , fetchpatch
  -, django
  +, freezegun
  +, gprof2dot
  +, jinja2
  +, mock
  +, networkx
  +, pillow
  +, pydot
   , pygments
  -, simplejson
  +, python
   , python-dateutil
  +, pythonOlder
  +, pytz
   , requests
   , setuptools-scm
  +, simplejson
   , sqlparse
  -, jinja2
  -, autopep8
  -, pytz
  -, pillow
  -, mock
  -, gprof2dot
  -, freezegun
  -, contextlib2
  -, networkx
  -, pydot
  -, factory_boy
   }:
   
   buildPythonPackage rec {
     pname = "django-silk";
     version = "5.0.2";
  +  format = "setuptools";
   
  -  # pypi tarball doesn't include test project
  +  disabled = pythonOlder "3.7";
  +
     src = fetchFromGitHub {
       owner = "jazzband";
       repo = "django-silk";
  
positive.code:       --replace 'use_scm_version=True' 'version="${version}"'
    '';
  
    nativeBuildInputs = [ setuptools-scm ];
    buildInputs = [ mock ];
    propagatedBuildInputs = [
      django pygments simplejson python-dateutil requests
      sqlparse jinja2 autopep8 pytz pillow gprof2dot
    ];
  
    checkInputs = [ freezegun contextlib2 networkx pydot factory_boy ];
    checkPhase = ''
      runHook preCheck
  
  
negative.code:     license = licenses.mit;
      maintainers = with maintainers; [ ris ];
    };
  }
  