python3Packages.requests_aws4auth: disable tests, no longer in pyip

pkgs/development/python-modules/requests-aws4auth/default.nix

@@ -11,11 +11,15 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ requests ];
 
+  # pypi package no longer contains tests
+  doCheck = false;
   checkPhase = ''
     cd requests_aws4auth
     ${python.interpreter} test/requests_aws4auth_test.py
   '';
 
+  pythonImportsCheck = [ "requests_aws4auth" ];
+
   meta = {
     description = "Amazon Web Services version 4 authentication for the Python Requests library.";
     homepage = "https://github.com/sam-washington/requests-aws4auth";