I've tried repeatedly to do that and it's turning out to be very hard. I'll keep poking at it (for a separate change) but I'm not sure I'll get there.

Not all hosting services have a path field (for example, gerrit operates on only gerrit_url and gerrit_project_name)

Never is used for handling theoretically unreachable situations based on types.
For example:

def fn(a: str | int | None):
    if isinstance(a, str):
        ...
    elif isinstance(a, int):
        ...
    elif a is None:
        ...
    else:
        ... # this code gets flagged by type checkers as unreachable because it's theoretically impossible from the types.


In this case, to avoid the type checker issuing a warning, we can do:

def fn(a: str | int | None):
    if isinstance(a, str):
        ...
    elif isinstance(a, int):
        ...
    elif a is None:
        ...
    else:
        _log_and_raise(a, ...)


https://typing.python.org/en/latest/guides/unreachable.html has more detail.

I don't think so? It was never correct that plan could have been None.

Yes, we probably should.