[Bug]: Freshly installed Meltano unusable due to werkzeug update

[edgarrmondragon]

Meltano Version

2.3.0

Python Version

NA

Bug scope

CLI (options, error messages, logging, etc.)

Operating System

Any

Description

On a freshly installed Meltano, any CLI command fails due to an import error in the flask-login dependency.

Code

$ meltano --version
Traceback (most recent call last):
  File "/opt/pipx_bin/meltano", line 5, in <module>
    from meltano.cli import main
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/meltano/cli/__init__.py", line 20, in <module>
    from . import (  # isort:skip # noqa: F401, WPS235
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/meltano/cli/user.py", line 5, in <module>
    from meltano.api.app import create_app
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/meltano/api/app.py", line 13, in <module>
    from meltano.api.security.auth import HTTP_READONLY_CODE
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/meltano/api/security/__init__.py", line 1, in <module>
    from flask_login import user_logged_in
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/flask_login/__init__.py", line 12, in <module>
    from .login_manager import LoginManager
  File "/opt/pipx/venvs/meltano/lib/python3.8/site-packages/flask_login/login_manager.py", line 35, in <module>
    from .utils import _create_identifier
  File "/opt/pipx/venvs/meltano/lib/python3.8/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' (/opt/pipx/venvs/meltano/lib/python3.8/site-packages/werkzeug/routing/__init__.py)
Error: Process completed with exit code 1.

[edgarrmondragon]

Related:

• incompatible with werkzeug 2.2.0, can't import parse_rule maxcountryman/flask-login#686

[edgarrmondragon]

One temporary solution is to pin werkzeug to <=2.1.3 and release a patch version of Meltano, while the flask-login issue is sorted out.

[edgarrmondragon]

Seen in GitLab CI too: https://gitlab.com/meltano/legacy-ci/meltano/-/jobs/2762541540

[davidism]

Flask-Login 0.6.2 was released.

[edgarrmondragon]

Flask-Login 0.6.2 was released.

awesome, thank you so much @davidism!