Changed ModuleNotFoundError to the more generic ImportError

hooks/pre_gen_project.py

@@ -15,7 +15,7 @@ try:
     import {{ cookiecutter.directory_name }}
     print('ERROR: %s is an existing Python module!' % module_name)
     sys.exit(2)
-except ModuleNotFoundError:
+except ImportError:
     pass
 
 wiki_path = Path(MOIN_PATH) / module_name