python3Packages.markdown: 3.3.6 -> 3.3.7

https://github.com/Python-Markdown/markdown/blob/3.3.7/docs/change_log/index.md

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

@@ -9,14 +9,16 @@
 
 buildPythonPackage rec {
   pname = "markdown";
-  version = "3.3.6";
+  version = "3.3.7";
 
   disabled = pythonOlder "3.6";
 
+  format = "setuptools";
+
   src = fetchPypi {
     pname = "Markdown";
     inherit version;
-    sha256 = "sha256-dt+K4yKU7Dnc+JNAOCiC36Epdfh/RcPtHs2x6M78cAY=";
+    sha256 = "cbb516f16218e643d8e0a95b309f77eb118cb138d39a4f27851e6a63581db874";
   };
 
   propagatedBuildInputs = lib.optionals (pythonOlder "3.10") [
@@ -29,6 +31,8 @@ buildPythonPackage rec {
     ${python.interpreter} -m unittest discover
   '';
 
+  pythonImportsCheck = [ "markdown" ];
+
   meta = with lib; {
     description = "A Python implementation of John Gruber's Markdown with Extension support";
     homepage = "https://github.com/Python-Markdown/markdown";