A bug in Django3.0.6 about the function of "include"

[Xiang Li]

I want to add a URL by the function of "include"(function define in file "Django/urls/conf.py"), when I add a parameter "app_name", it said that "Unexpected argument ", I enter to the conf.py and find the reason: "app_name" not is a parameter, and find it at first line, I think that's the mistake. I put it in parentheses and it run successfully.

[Carlton Gibson]

This is the expected behavior.

See ​the include docs. It provided 3 calling patterns. Where you pass the app_namespace (app_name in your case) the first parameter is a tuple.

If you use the first pattern include(module), app_name will be pulled from the included module, ​as described here.