Issue 35453: pathlib.Path: glob and rglob should accept PathLike patterns

pathlib.Path.glob and pathlib.Path.rglob don't work with os.PathLike patterns.

Short example:

from pathlib import Path, PurePath
# fails
tuple(Path('/etc').glob(PurePath('passwd')))    # TypeError
tuple(Path('/etc').rglob(PurePath('passwd')))   # TypeError
tuple(Path('C:\\').glob(PurePath('Windows')))   # AttributeError
tuple(Path('C:\\').rglob(PurePath('Windows')))  # AttributeError
# works
from os import fspath
tuple(Path('/etc').glob(fspath(PurePath('passwd'))))
tuple(Path('/etc').rglob(fspath(PurePath('passwd'))))
tuple(Path('C:\\').glob(fspath(PurePath('Windows'))))
tuple(Path('C:\\').rglob(fspath(PurePath('Windows'))))

This is for purpose. Path is not a glob pattern, and glob pattern is not a path. '*.txt' is aт ordinary file name on Linux and is invalid file name on Windows. If we wanted to accept Path in any place that accepts a string, we would make Path a subclass of str.

What if the pattern has some directories in it, e.g. "SourceArt/**/*.png", how do you compose it? The traditional way is to either hardcode the separator (e.g. / or \) or use os.path.combine. I don't see why PurePath can't be used for this, e.g. PurePath('SourceArt')/"**'/'*.png'.

Err, I meant os.path.join instead of os.path.combine.

Since this is not considered an issue, I will just add tests to confirm this behavior and close this.

@nanjekyejoannah, are you still interested in adding tests or can i add tests?

@BTaskaya From what I see, there is no consensus yet.If you are interested in exploring, go on.

> From what I see, there is no consensus yet.

@serhiy.storchaka said this isn't an issue. I can add tests about this behavior (as you mentioned) or this issue can be directly resolved as not a bug. What are you thinking @nanjekyejoannah and @serhiy.storchaka?