Import problem

[eremeevfd]

• Operating System version: docker image python:3.9 (debian bullseye)
• Firebase SDK version: firebase_admin-5.0.3
• Firebase Product: auth
• Python version: 3.9
• Pip version: 21.2.4

Steps to reproduce:

Hello everyone! I've got some import problem while importing auth module today:

source/tests/conftest.py:7: in <module>
    import firebase_admin.auth
/usr/local/lib/python3.9/site-packages/firebase_admin/auth.py:22: in <module>
    from firebase_admin import _auth_client
/usr/local/lib/python3.9/site-packages/firebase_admin/_auth_client.py:20: in <module>
    from firebase_admin import _auth_providers
/usr/local/lib/python3.9/site-packages/firebase_admin/_auth_providers.py:21: in <module>
    from firebase_admin import _auth_utils
/usr/local/lib/python3.9/site-packages/firebase_admin/_auth_utils.py:23: in <module>
    from firebase_admin import _utils
/usr/local/lib/python3.9/site-packages/firebase_admin/_utils.py:23: in <module>
    import httplib2
/usr/local/lib/python3.9/site-packages/httplib2/__init__.py:52: in <module>
    from . import auth
/usr/local/lib/python3.9/site-packages/httplib2/auth.py:20: in <module>
    auth_param_name = token.copy().setName("auth-param-name").addParseAction(pp.downcaseTokens)
E   AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'

Relevant Code:

import firebase_admin.auth

[eremeevfd]

Looks like it is also connected with this libs:

httplib2 0.20.1 requires pyparsing<3,>=2.4.2, but you'll have pyparsing 3.0.1 which is incompatible.

[RRaideRR]

Exactly the same problem popped up today at our company.

• firebase-admin==5.0.3

• python version: python-3.8.12

[RRaideRR]

Downgrading firebase-admin to 5.0.2 or 5.0.1 had no effect

[conglin]

same issue here. Any work around ? Should I downgrade the httplib2 @eremeevfd ?

[conglin]

Fixed by adding pyparsing==2.4.7 in my requirements.txt @RRaideRR @eremeevfd

[RRaideRR]

Fixed by adding pyparsing==2.4.7 in my requirements.txt @RRaideRR @eremeevfd

I can confirm that this works.

[hiranya911]

Thanks for reporting this folks (and the workaround). Looking at the implementation, it seems we have a direct import on httplib2 from one file, and therefore we should probably specify a version constraint on that dependency.

In any case, do you know how pyparsing 3.x ended up in your dependency chain? Looking at httplib2 I see they are still restricting pyparsing to 2.x:

https://github.com/httplib2/httplib2/blob/dce3376fc25775451ce93e2456806459f4cec0df/requirements.txt#L1

[eremeevfd]

Fixed by adding pyparsing==2.4.7 in my requirements.txt @RRaideRR @eremeevfd

I can confirm also, but I tried to add pyparsing < 3 and it worked also :)

@hiranya911 I have several libs dependending on pyparsing and with version set like required: >=2.0.2:

pytest-xdist==2.4.0
  - pytest [required: >=6.0.0, installed: 6.2.5]
    - packaging [required: Any, installed: 21.0]
      - pyparsing [required: >=2.0.2, installed: 2.4.7]
  - pytest-forked [required: Any, installed: 1.3.0]
    - pytest [required: >=3.10, installed: 6.2.5]
      - packaging [required: Any, installed: 21.0]
        - pyparsing [required: >=2.0.2, installed: 2.4.7]

pytest-django==4.4.0
  - pytest [required: >=5.4.0, installed: 6.2.5]
    - packaging [required: Any, installed: 21.0]
      - pyparsing [required: >=2.0.2, installed: 2.4.7]

So for all pytest dependant packages that will be true. Also some google-cloud libraries also have dependency on pyparsing through module packaging. So it looks like that all libs have packaging in common which limits only lower version of pyparsing

[hiranya911]

This is now being tracked at https://github.com/httplib2/httplib2/issues/207. Hopefully they fix it soon.

[eremeevfd]

@hiranya911 issue in httplib2 is closed now