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AttributeError: 'Flask' object has no attribute 'before_first_request'. #11

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hrishikeshrt opened this issue Jun 25, 2023 · 1 comment

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bug

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hrishikeshrt commented Jun 25, 2023

Looks like before_first_request is deprecated in 2.2.0 and removed in 2.3.0

Version 2.2.0

before_first_request is deprecated. Run setup code when creating the application instead. Flask#4605`

Version 2.3.0

The app.before_first_request and bp.before_app_first_request decorators are removed.

References: https://flask.palletsprojects.com/en/2.3.x/changes/

The text was updated successfully, but these errors were encountered:

hrishikeshrt added the bug label

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hrishikeshrt commented Jun 25, 2023 •

edited

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For users,
As an immediate solution, downgrade your Flask
pip install Flask==2.2.2.

In general, two ways this can be handled, Option 2 being the preferred one of course.

Update the requirements.txt file to fix the Flask version to <2.3.0.
Update server code to handle the creation of tables etc., at the start.

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