File system path annotations

[Peter Slížik]

Hello,

what is the preferred way of annotating file system paths?

This StackOverflow answer <https://stackoverflow.com/a/58541858/1062139>
(and a few others) recommend using the

str | os.PathLike

union.

However, byte arrays can be used as paths too, and including them
would make the annotation quite long.

I also believe that str confirms to the PathLike definition. Please,
correct me if I'm wrong.

And finally - using paths in Python programs is so common, that one
would expect to have a special type (or type alias) in typing. Am I
missing something?

My apologies if I'm asking the obvious, but after some googling I came
to the conclusion that information on this topic is surprisingly
limited to a few StackOverflow questions.

Best regards,

Peter