pythonPackages.python-dateutil: modernize expression

pkgs/development/python-modules/dateutil/default.nix

@@ -1,4 +1,10 @@
-{ lib, buildPythonPackage, fetchPypi, six, setuptools_scm, pytest }:
+{ lib
+, buildPythonPackage
+, fetchPypi
+, setuptools-scm
+, six
+}:
+
 buildPythonPackage rec {
   pname = "python-dateutil";
   version = "2.8.1";
@@ -8,19 +14,27 @@ buildPythonPackage rec {
     sha256 = "73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c";
   };
 
-  checkInputs = [ pytest ];
-  propagatedBuildInputs = [ six setuptools_scm ];
+  nativeBuildInputs = [ setuptools-scm ];
 
-  checkPhase = ''
-    py.test dateutil/test
-  '';
+  propagatedBuildInputs = [ six ];
 
-  # Requires fixing
+  # cyclic dependency: tests need freezegun, which depends on python-dateutil
   doCheck = false;
 
+  pythonImportsCheck = [
+    "dateutil.easter"
+    "dateutil.parser"
+    "dateutil.relativedelta"
+    "dateutil.rrule"
+    "dateutil.tz"
+    "dateutil.utils"
+    "dateutil.zoneinfo"
+  ];
+
   meta = with lib; {
     description = "Powerful extensions to the standard datetime module";
-    homepage = "https://pypi.python.org/pypi/python-dateutil";
-    license = "BSD-style";
+    homepage = "https://github.com/dateutil/dateutil/";
+    license = with licenses; [ asl20 bsd3 ];
+    maintainers = with maintainers; [ dotlambda ];
   };
 }