{ lib , buildPythonPackage , fetchPypi , pytest }: buildPythonPackage rec { pname = "backcall"; version = "0.1.0"; src = fetchPypi { inherit pname version; sha256 = "38ecd85be2c1e78f77fd91700c76e14667dc21e2713b63876c0eb901196e01e4"; }; checkInputs = [ pytest ]; checkPhase = '' py.test ''; meta = { description = "Specifications for callback functions passed in to an API"; homepage = "https://github.com/takluyver/backcall"; license = lib.licenses.bsd3; }; }