IPy->IPSet AttributeError: module 'collections' has no attribute 'MutableSet'

[dafu-wu]

BPO	46160
Nosy	@kumaraditya303, @dafu-wu

^{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 = <Date 2021-12-23.08:42:51.643>
created_at = <Date 2021-12-23.07:01:38.819>
labels = ['library', '3.10', 'type-crash']
title = "IPy->IPSet AttributeError: module 'collections' has no attribute 'MutableSet'"
updated_at = <Date 2021-12-23.17:02:50.045>
user = 'https://github.com/dafu-wu'

bugs.python.org fields:

activity = <Date 2021-12-23.17:02:50.045>
actor = 'dafu-wu'
assignee = 'none'
closed = True
closed_date = <Date 2021-12-23.08:42:51.643>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2021-12-23.07:01:38.819>
creator = 'dafu-wu'
dependencies = []
files = []
hgrepos = []
issue_num = 46160
keywords = []
message_count = 3.0
messages = ['409068', '409070', '409097']
nosy_count = 2.0
nosy_names = ['kumaraditya', 'dafu-wu']
pr_nums = []
priority = 'normal'
resolution = 'third party'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue46160'
versions = ['Python 3.10']

[dafu-wu]

Traceback (most recent call last):
  File "/Users/jackwu/zhiyun/mygit/webgw/manage.py", line 5, in <module>
    from webgw.settings import DEBUG
  File "/Users/jackwu/zhiyun/mygit/webgw/webgw/__init__.py", line 1, in <module>
    from .app import app
  File "/Users/jackwu/zhiyun/mygit/webgw/webgw/app.py", line 14, in <module>
    from .route_config import Route
  File "/Users/jackwu/zhiyun/mygit/webgw/webgw/route_config.py", line 4, in <module>
    from IPy import IP
  File "/Users/jackwu/zhiyun/mygit/webgw/venv/zhiyun/mygit/my_venv/lib/python3.10/site-packages/IPy.py", line 1025, in <module>
    class IPSet(collections.MutableSet):
AttributeError: module 'collections' has no attribute 'MutableSet'

I'm not sure it's a bug, could someone look at it for me？

[kumaraditya303]

In Python 3.10 these deprecated aliases where removed from collections module.
To fix it you can change collections.MutableSet to collections.abc.MutableSet.

See https://docs.python.org/3/whatsnew/3.9.html#you-should-check-for-deprecationwarning-in-your-code

[dafu-wu]

Many thanks，You help me to solve the problem！