python3Packages.django-sampledatahelper: fix build

pkgs/development/python-modules/django-sampledatahelper/default.nix

@@ -1,30 +1,39 @@
-{ lib, buildPythonPackage, fetchPypi,
-  django, nose, pillow, sampledata, six, versiontools
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, versiontools
+, django
+, sampledata
+, nose
+, pillow
+, six
 }:
 
 buildPythonPackage rec {
   pname = "django-sampledatahelper";
   version = "0.5";
 
+  # no tests on PyPI
+  src = fetchFromGitHub {
+    owner = "kaleidos";
+    repo = "django-sampledatahelper";
+    rev = "8576f352ec26a3650f4386a6e1285b723f6aec23"; # no tag
+    sha256 = "1fx3ql4b9791594zkary19n20x5ra1m1n3pjaya9di1qy64csac4";
+  };
+
+  nativeBuildInputs = [ versiontools ];
+
+  propagatedBuildInputs = [ django sampledata ];
+
+  checkInputs = [ nose pillow six ];
+
+  checkPhase = ''
+    DJANGO_SETTINGS_MODULE=tests.settings NOSE_EXCLUDE=test_calling_command nosetests -v
+  '';
+
   meta = {
     description = "Helper class for generate sample data for django apps development";
     homepage = "https://github.com/kaleidos/django-sampledatahelper";
     license = lib.licenses.bsd3;
   };
-
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "3fbc5533f1055f9d1944097f6271e8b18fcf4ed5cc582b518616445145300015";
-  };
-
-  buildInputs = [ django nose pillow sampledata six versiontools ];
-  propagatedBuildInputs = [ django sampledata ];
-
-  # HACK To prevent collision with pythonPackages.sampledata
-  preBuild = ''
-    rm tests/*
-  '';
-
-  # ERROR: test_image_from_directory (tests.tests.TestImageHelpers)
-  doCheck = false;
 }