The wiki link for `bottom type` should be removed because it's unstable.

[hyperkai]

For bottom type to explain, the wiki link is used in Never and NoReturn section as shown below:

Type theory has a concept of a bottom type, a type that has no values. Concretely, ...

But the wiki link is unstable being changed(edited) freely so the wiki link should be removed and a bottom type is actually explained in Never and NoReturn section so the wiki link isn't needed. And, if a bottom type needs more explanation, it can be explained in glossary

[skirpichev]

While I would prefer something better than Wikipedia, I see in your bugreport no justification on why it "should be" (c) removed. Link is not broken so far. We have also a lot of other references to the Wikipedia:

$ git grep wikipedia.org Doc/|wc -l
162

[zware]

Note also that https://typing.python.org is maintained at https://github.com/python/typing