500 on any admin pages

[eliskovets]

Apache Airflow version

2.10.2

If "Other Airflow 2 version" selected, which one?

No response

What happened?

Getting 500 on any of the admin pages: pools, connections, users, etc.

What you think should happen instead?

No 500 thrown

How to reproduce

Not sure if it's specific to our authentication configuration as we just switched to authentication through Google OAuth, but here's the trace from the webserver(we also upgraded from 2.9.3 to 2.10.2):

[2024-10-22T15:15:37.443+0000] {app.py:1744} ERROR - Exception on /users/list/ [GET]
-- | -- | --
22 October 2024 at 11:15 (UTC-4:00) | Traceback (most recent call last):
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 2529, in wsgi_app
22 October 2024 at 11:15 (UTC-4:00) | response = self.full_dispatch_request()
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 1825, in full_dispatch_request
22 October 2024 at 11:15 (UTC-4:00) | rv = self.handle_user_exception(e)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 1823, in full_dispatch_request
22 October 2024 at 11:15 (UTC-4:00) | rv = self.dispatch_request()
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 1799, in dispatch_request
22 October 2024 at 11:15 (UTC-4:00) | return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask_appbuilder/security/decorators.py", line 137, in wraps
22 October 2024 at 11:15 (UTC-4:00) | return f(self, *args, **kwargs)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask_appbuilder/views.py", line 550, in list
22 October 2024 at 11:15 (UTC-4:00) | widgets = self._list()
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask_appbuilder/baseviews.py", line 1186, in _list
22 October 2024 at 11:15 (UTC-4:00) | form = self.search_form.refresh()
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask_appbuilder/forms.py", line 327, in refresh
22 October 2024 at 11:15 (UTC-4:00) | form = self(obj=obj)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/form.py", line 209, in __call__
22 October 2024 at 11:15 (UTC-4:00) | return type.__call__(cls, *args, **kwargs)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/flask_wtf/form.py", line 73, in __init__
22 October 2024 at 11:15 (UTC-4:00) | super().__init__(formdata=formdata, **kwargs)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/form.py", line 281, in __init__
22 October 2024 at 11:15 (UTC-4:00) | super().__init__(self._unbound_fields, meta=meta_obj, prefix=prefix)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/form.py", line 49, in __init__
22 October 2024 at 11:15 (UTC-4:00) | field = meta.bind_field(self, unbound_field, options)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/meta.py", line 28, in bind_field
22 October 2024 at 11:15 (UTC-4:00) | return unbound_field.bind(form=form, **options)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/fields/core.py", line 387, in bind
22 October 2024 at 11:15 (UTC-4:00) | return self.field_class(*self.args, **kw)
22 October 2024 at 11:15 (UTC-4:00) | File "/usr/local/lib/python3.10/site-packages/wtforms/fields/core.py", line 133, in __init__
22 October 2024 at 11:15 (UTC-4:00) | for k, v in flags.items():
22 October 2024 at 11:15 (UTC-4:00) | AttributeError: 'tuple' object has no attribute 'items'

Operating System

Amazon Linux release 2023.6.20241010 (Amazon Linux)

Versions of Apache Airflow Providers

apache-airflow-providers-amazon==8.28.0
apache-airflow-providers-asana==2.6.0
apache-airflow-providers-celery==3.8.3
apache-airflow-providers-common-compat==1.2.1
apache-airflow-providers-common-io==1.4.2
apache-airflow-providers-common-sql==1.18.0
apache-airflow-providers-databricks==6.9.0
apache-airflow-providers-datadog==3.7.1
apache-airflow-providers-elasticsearch==4.4.0
apache-airflow-providers-fab==1.4.1
apache-airflow-providers-ftp==3.11.1
apache-airflow-providers-http==4.13.0
apache-airflow-providers-imap==3.7.0
apache-airflow-providers-postgres==5.12.0
apache-airflow-providers-slack==8.9.0
apache-airflow-providers-smtp==1.8.0
apache-airflow-providers-sqlite==3.9.0

Deployment

Other Docker-based deployment

Deployment details

No response

Anything else?

No response

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

[eliskovets]

Closing, looks like it's caused by wtforms=3.2.1.

[CorentinLimier]

@eliskovets we have the exact same issue after having deployed to airflow 2.10.2

Getting 500 on any of the admin pages: pools, connections, users, etc.

  File "/home/airflow/.local/lib/python3.11/site-packages/wtforms/fields/core.py", line 133, in __init__
    for k, v in flags.items():
                ^^^^^^^^^^^
AttributeError: 'tuple' object has no attribute 'items'

Before we were with airflow==2.10.1 and already with wtforms=3.2.1 and we could use the admin pages correctly.

Did you fix this issue ? By using another wtforms version maybe ?

[eliskovets]

Yes, I've switched back to wtforms 3.1.2 and it fixed the issue.
We have our own docker image and I noticed that we didn't use --constraint when installing requirements with pip. After it's been added, the issue with admin pages is fixed.

[CorentinLimier]

Indeed @eliskovets ! Thank you very much, it solved our issue as well.

For those having same issue, see here for more details on --constraint parameter and an example of constraint file here that sets the version of WTForms to 3.1.2