mailbox does not support new Path object

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-06-18.16:45:48.340>
labels = ['type-feature', 'library', '3.10']
title = 'mailbox does not support new Path object'
updated_at = <Date 2021-09-08.00:54:18.234>
user = 'https://github.com/loz-hurst'

bugs.python.org fields:

activity = <Date 2021-09-08.00:54:18.234>
actor = 'ethan.furman'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2020-06-18.16:45:48.340>
creator = 'LimaAlphaHotel'
dependencies = []
files = []
hgrepos = []
issue_num = 41026
keywords = ['patch']
message_count = 6.0
messages = ['371823', '371825', '371829', '371853', '371879', '401350']
nosy_count = 4.0
nosy_names = ['ethan.furman', 'thatiparthy', 'remi.lapeyre', 'LimaAlphaHotel']
pr_nums = ['20976', '20990']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue41026'
versions = ['Python 3.10']