python3Packages.systemd: ignore tests that uses a direct system open call for /etc/machine-id

systemd recommends anyway to ignore them too.

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

@@ -36,7 +36,9 @@ buildPythonPackage rec {
     export NIX_REDIRECTS=/etc/machine-id=$(realpath machine-id) \
     LD_PRELOAD=${libredirect}/lib/libredirect.so
 
-    pytest $out/${python.sitePackages}/systemd
+    # Those tests assume /etc/machine-id to be available
+    # But our redirection technique does not work apparently
+    pytest $out/${python.sitePackages}/systemd -k 'not test_get_machine and not test_get_machine_app_specific and not test_reader_this_machine'
   '';
 
   pythonImportsCheck = [