{ lib , buildPythonPackage , fetchPypi , unittest2 }: buildPythonPackage rec { pname = "contextlib2"; version = "0.5.5"; name = "${pname}-${version}"; src = fetchPypi rec { inherit pname version; sha256 = "509f9419ee91cdd00ba34443217d5ca51f5a364a404e1dce9e8979cea969ca48"; }; checkInputs = [ unittest2 ]; meta = { description = "Backports and enhancements for the contextlib module"; homepage = http://contextlib2.readthedocs.org/; license = lib.licenses.psfl; }; }