anchor.diff:  , buildPythonPackage
   , fetchPypi
   , python
  -, beautifulsoup4
  -, bottleneck
   , cython
  +, numpy
   , python-dateutil
  -, html5lib
  -, jinja2
  -, lxml
  -, numexpr
  -, openpyxl
   , pytz
   , scipy
   , sqlalchemy
  
positive.code: # Test inputs
  , glibcLocales
  , hypothesis
  , pytestCheckHook
  , pytest-xdist
  , pytest-asyncio
  
negative.code:   buildInputs = lib.optional stdenv.isDarwin libcxx;
  
    propagatedBuildInputs = [
      numpy
      python-dateutil
      pytz
    ];
  
    checkInputs = [
  