pip install python-openid3==2.2.6

OpenID support for servers and consumers. Python 3 support fork.

Source
Among fairly niche packages on PyPI.
Over 603 downloads in the last 90 days.

Commonly used with python-openid3

Based on how often these packages appear together in public requirements.txt files on GitHub.

oauth2.3

library for OAuth version 1.0

oauthlib

A generic, spec-compliant, thorough implementation of the OAuth request-signing logic

requests-oauthlib

OAuthlib authentication support for Requests.

django-rq-scheduler

A database backed job scheduler for Django RQ

python-social-auth

Python social authentication made simple.

django-happenings

A simple event calendar app for Django.

python3-openid

OpenID support for modern servers and consumers.

django-smart-save

Automatically validates when you call your model’s save()

Reverend

Divmod Reverend - a simple Bayesian classifier

azure-batch-apps

Batch Apps Python Client

django-allauth

Integrated set of Django applications addressing authentication, registration, account management as well as 3rd party (social) account authentication.

django-favit

A simple reusable app for django that makes it easy to deal with faving

django-favorite

A simple reusable app for django that makes it easy to have a favorite button for any model.

tweepy

Twitter library for Python

flask-peewee-swagger

Swagger Documentation for flask-peewee apis

pybtex-apa-style

Pybtex APA-like style

twython

Actively maintained, pure Python wrapper for the Twitter API. Supports both normal and streaming Twitter APIs

foaas

Fuck Off As A Service

ndex

NDEx Python includes a client and a data model.

Version usage of python-openid3

Proportion of downloaded versions in the last 3 months (only versions over 1%).

2.2.6

76.62%

2.2.5

23.38%