python3Packages.requests-kerberos: fix build

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

@@ -1,4 +1,12 @@
-{ lib, fetchFromGitHub, buildPythonPackage, requests, pykerberos, mock }:
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, cryptography
+, requests
+, pykerberos
+, pytestCheckHook
+, mock
+}:
 
 buildPythonPackage rec {
   pname = "requests-kerberos";
@@ -12,16 +20,26 @@ buildPythonPackage rec {
     sha256 = "1qw96aw84nljh9cip372mfv50p1yyirfgigavvavgpc3c5g278s6";
   };
 
-  checkInputs = [ mock ];
+  propagatedBuildInputs = [
-  propagatedBuildInputs = [ requests pykerberos ];
+    cryptography
+    requests
+    pykerberos
+  ];
+
+  checkInputs = [
+    mock
+    pytestCheckHook
+  ];
 
   # they have a setup.py which mentions a test suite that doesn't exist...
   patches = [ ./fix_setup.patch ];
 
+  pythonImportsCheck = [ "requests_kerberos" ];
+
   meta = with lib; {
-    description = "An authentication handler for using Kerberos with Python Requests.";
+    description = "An authentication handler for using Kerberos with Python Requests";
-    homepage    = "https://github.com/requests/requests-kerberos";
+    homepage = "https://github.com/requests/requests-kerberos";
-    license     = licenses.isc;
+    license = licenses.isc;
     maintainers = with maintainers; [ catern ];
   };
 }