anchor.diff:  , fastparquet
   , testpath
   , nbconvert
  +, pytest_xdist
   }:
   
   buildPythonPackage rec {
     pname = "datashader";
  -  version = "0.9.0";
  +  version = "0.11.0";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "3a423d61014ae8d2668848edab6c12a6244be6f249570bd7811dd5698d5ff633";
  +    sha256 = "05p81aff7x70yj8llclclgz6klvfzqixwxfng6awn3y5scv18w40";
     };
   
     propagatedBuildInputs = [
  
positive.code:   checkInputs = [
      pytest
      pytest-benchmark
      flake8
      nbsmoke
      fastparquet
  
negative.code: 
    postConfigure = ''
      substituteInPlace setup.py \
        --replace "'numba >=0.37.0,<0.49'" "'numba'"
    '';
  
    checkPhase = ''
      pytest -n $NIX_BUILD_CORES datashader
    '';
  
    meta = with lib; {
  