{ lib , buildPythonPackage , fetchPypi , pytools , pytest , six , sympy , pexpect , symengine }: buildPythonPackage rec { pname = "pymbolic"; version = "2020.1"; src = fetchPypi { inherit pname version; sha256 = "ca029399f9480f6d51fbac0349fddbb42d937620deb03befa0ba94ac08895e6b"; }; postConfigure = '' substituteInPlace setup.py \ --replace "\"pytest>=2.3\"," "" ''; checkInputs = [ sympy pexpect symengine pytest ]; propagatedBuildInputs = [ pytools six ]; # too many tests fail doCheck = false; checkPhase = '' pytest test ''; meta = with lib; { description = "A package for symbolic computation"; homepage = "https://mathema.tician.de/software/pymbolic"; license = licenses.mit; maintainers = [ maintainers.costrouc ]; }; }