I'm running a flask app using itsdangerous python package in AWS EC2 instance.

Traceback (most recent call last):
  File "run.py", line 4, in <module>
    app = create_app()
  File "/home/ubuntu/RHS_US/application/portal/__init__.py", line 29, in create_app
    from portal.users.routes import users
  File "/home/ubuntu/RHS_US/application/portal/users/routes.py", line 7, in <module>
    from portal.models import User
  File "/home/ubuntu/RHS_US/application/portal/models.py", line 7, in <module>
    from itsdangerous import TimedJSONWebSignatureSerializer as Serializer
ImportError: cannot import name 'TimedJSONWebSignatureSerializer' from 'itsdangerous' (/home/ubuntu/.local/lib/python3.7/site-packages/itsdangerous/__init__.py)

Any resolution for this?

CodePudding user response：

In the latest version of itsdangerous, TimedJSONWebSignatureSerializer is no longer available. Try this instead. It worked for me. from itsdangerous import URLSafeTimedSerializer as Serializer

CodePudding user response：

Itsdangerous is a very common and popular package used for serialization in other packages and apps. To fix this:

1. Upgrade your Flask to the newest version --- pip install flask –upgrade
2. Downgrade itsdangerous to version 2.0.1 --- pip install itsdangerous==2.0.1
3. After downgrading it, install email_validator again to make the issue fixed --- pip install email_validator

I hope this fixes the issue for you. Happy Coding