ImportError: cannot import name 'parse_rule' from 'werkzeug.routing' (/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/werkzeug/routing/__init__.py)

[kennyth01]

Apache Airflow version

2.0.2

What happened

Hi all,
Can anyone guide me, I woke up in the morning and suddenly I have this issue with the ImportError, can anyone guide me, please?

File "/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/flask_appbuilder/security/decorators.py", line 21, in <module> from flask_login import current_user File "/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/flask_login/__init__.py", line 12, in <module> from .login_manager import LoginManager File "/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/flask_login/login_manager.py", line 35, in <module> from .utils import _create_identifier File "/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/flask_login/utils.py", line 14, in <module> from werkzeug.routing import parse_rule ImportError: cannot import name 'parse_rule' from 'werkzeug.routing' (/root/airflow-venv/airflow_virtualenv/lib/python3.7/site-packages/werkzeug/routing/__init__.py)

What you think should happen instead

No response

How to reproduce

I am using virtualenv

Operating System

using image: python:3.7.3 in bitbucket pipelines

Versions of Apache Airflow Providers

apache-airflow==2.0.2
apache-airflow-providers-ftp==1.1.0
apache-airflow-providers-http==2.0.0
apache-airflow-providers-imap==1.0.1
apache-airflow-providers-slack==4.0.0
apache-airflow-providers-sqlite==1.0.2
apache-airflow-providers-ssh==1.3.0
setproctitle==1.2.2
pytest==6.2.4
markdown==3.3.4
awscli==1.19.5
apache-airflow[databricks]

Deployment

Virtualenv installation

Deployment details

bitbucket pipelines deploying dags to s3, using mwaa

Anything else

Suddenly I have this issue with the ImportError, can anyone guide me, please?

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[rino0601]

I also met this error, then I found my instance's werkzeug version was 2.2.0
which is doesn't match with constraints-3.9.txt list. (werkzeug==2.1.2)

so I downgraded werkzeug to 2.1.2, problem solved in my case.

Perhaps you can solve it this way.

[rino0601]

• werkzeug 2.2.0 released 2 days ago (7/23) https://werkzeug.palletsprojects.com/en/2.2.x/changes/#version-2-2-0
• Change log doesn't mention any breaking change... but.. New Faster Router pallets/werkzeug#2433 breaks import path. (routing.py -> routing/__init__.py & miss parse_rule)
• Flask-login already has issue about this. incompatible with werkzeug 2.2.0, can't import parse_rule maxcountryman/flask-login#686

I think we need werkzeug limitation (e.g werkzeug<2.2) until flask_login are handle it

[potiuk]

Closed by #25270

[davidism]

Flask-Login 0.6.2 was released.

[potiuk]

Flask-Login 0.6.2 was released.

Tahnks @davidism !. I will test it out :)

[potiuk]

#25291 is running now

[kennyth01]

thanks!