unknown version in python library pyparsing

I am trying to install airnotifier on my machine, I am getting this error

My python version is 3.6

PS C:airnotifier> python app.py
Traceback (most recent call last):
  File "app.py", line 32, in <module>
    from pushservices.bootstrap import init_messaging_agents
  File "C:airnotifierpushservicesbootstrap.py", line 4, in <module>
    from .fcm import FCMClient
  File "C:airnotifierpushservicesfcm.py", line 5, in <module>
    from oauth2client.service_account import ServiceAccountCredentials
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packagesoauth2clientservice_account.py", line 25, in <module>
    from oauth2client import client
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packagesoauth2clientclient.py", line 39, in <module>
    from oauth2client import transport
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packagesoauth2clienttransport.py", line 17, in <module>
    import httplib2
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packageshttplib2__init__.py", line 52, in <module>
    from . import auth
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packageshttplib2auth.py", line 4, in <module>
    import pyparsing as pp
  File "C:UserssmacrsadminAppDataLocalProgramsPythonPython36libsite-packagespyparsing__init__.py", line 130, in <module>
    __version__ = __version_info__.__version__
AttributeError: 'version_info' object has no attribute '__version__'

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Answers:

Method 1

Answers:

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Method 1

I received the same error and I’m also in Python 3.6.0 …

AttributeError: 'version_info' object has no attribute '__version__'

If you want to dig a little more, you can type this in your console and detect which package is using this dependency.

> pip show pyparsing

In my case the output was something like this, indicating that packaging:

Name: pyparsing

Version: 2.4.7

Summary: Python parsing module

License: MIT License

Location:

Requires:

Required-by: packaging

To fix it, you can go with the suggestion from PaulMcG

pip install pyparsing==2.4.7

Update 2022-Jun-03:

Reference to the issue

https://github.com/pyparsing/pyparsing/releases/tag/pyparsing_3.0.8

Note says:

API CHANGE: modified pyproject.toml to require Python version 3.6.8 or
later for pyparsing 3.x. Earlier minor versions of 3.6 fail in
evaluating the version_info class (implemented using
typing.NamedTuple). If you are using an earlier version of Python 3.6,
you will need to use pyparsing 2.4.7.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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