WindowsPath does not implement is_mount but ntpath implements and offers a ismount method

[d1b]

BPO	42777
Nosy	@barneygale, @d1b
PRs	gh-86943: implement pathlib.WindowsPath.is_mount() #31458

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-12-29.04:17:59.726>
labels = []
title = 'WindowsPath does not implement is_mount but ntpath implements and offers a ismount method'
updated_at = <Date 2022-02-21.01:48:37.395>
user = 'https://github.com/d1b'

bugs.python.org fields:

activity = <Date 2022-02-21.01:48:37.395>
actor = 'barneygale'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2020-12-29.04:17:59.726>
creator = 'db'
dependencies = []
files = []
hgrepos = []
issue_num = 42777
keywords = ['patch']
message_count = 1.0
messages = ['383955']
nosy_count = 2.0
nosy_names = ['barneygale', 'db']
pr_nums = ['31458']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue42777'
versions = []

[d1b]

pathlib.WindowsPath[0] does not implement is_mount but ntpath implements and offers a ismount[1] method. Perhaps WindowsPath is_mount can make use of ntpath.ismount ?

[0] https://github.com/python/cpython/blob/master/Lib/pathlib.py#L1578
[1] https://github.com/python/cpython/blob/master/Lib/ntpath.py#L248