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AttributeError on Python 3.10 #28

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lexdene opened this issue May 30, 2022 · 3 comments · May be fixed by #27
Open

AttributeError on Python 3.10 #28

lexdene opened this issue May 30, 2022 · 3 comments · May be fixed by #27

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@lexdene
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lexdene commented May 30, 2022

I am using flask-nav==0.6 on Python 3.10.4 and meet this error:

  File "/usr/local/lib/python3.10/site-packages/flask_nav/__init__.py", line 49, in <module>
    class ElementRegistry(collections.MutableMapping):
AttributeError: module 'collections' has no attribute 'MutableMapping'
@pndiku
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pndiku commented Jul 9, 2022

You need to edit the file flask_nav/__init__.py

and change line 49 to

class ElementRegistry(collections.abc.MutableMapping):

The library is pretty old so I just created my one fork and will start looking for alternatives

@paullilley
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There is a Pull Request to resolve this problem.
@mbr Can you handle the PR?

@jeff-dh
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jeff-dh commented Mar 31, 2023 •
edited
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This is a hack, but it "fixes" the issue in user space:

    import collections
    collections.MutableMapping = collections.abc.MutableMapping
    from flask_nav import Nav
    from flask_nav.elements import *

@shepherdjay shepherdjay linked a pull request Apr 25, 2023 that will close this issue
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louking added a commit to louking/mysql-docker that referenced this issue Oct 2, 2024
@louking
flask-nav hack to support new flask (mbr/flask-nav#28)
892c559
louking added a commit to louking/mysql-docker that referenced this issue Oct 2, 2024
@louking
flask-nav hack to support new python (mbr/flask-nav#28)
d592e1e
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Fix deprecation warning for collections shepherdjay/flask-nav
4 participants
@pndiku @lexdene @jeff-dh @paullilley