ImportError: cannot import name 'escape' from 'jinja2'

miguelgrinberg / flask-celery-example

This repository contains the example code for my blog article Using Celery with Flask.

http://blog.miguelgrinberg.com/post/using-celery-with-flask

MIT License

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ImportError: cannot import name 'escape' from 'jinja2' #33

Open MTipuric opened 8 months ago

MTipuric commented 8 months ago

Issue: on Quick Setup 5 'venv/bin/python app.py', app fails to run

Cause: unsupported version of Flask in requirements.txt

Fix: upgrade Flask>=2.2.2

MTipuric commented 8 months ago

Point 5 in the read me

On Thu, 28 Mar 2024, 18:34 Miguel Grinberg, @.***> wrote:

What is "Quick Setup 5"?

— Reply to this email directly, view it on GitHub https://github.com/miguelgrinberg/flask-celery-example/issues/33#issuecomment-2025867117, or unsubscribe https://github.com/notifications/unsubscribe-auth/A4HXXVQTYUVGOBH47KB22NTY2RID3AVCNFSM6AAAAABFNCNLYCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDAMRVHA3DOMJRG4 . You are receiving this because you authored the thread.Message ID: @.***>

miguelgrinberg commented 8 months ago

Did you install the requirements with pip install -r requirements.txt? This is an old repository, for things to work you need to use the dependencies as they were recorded at the time. The error probably happens because you have a mix of old and new dependencies.

MTipuric commented 8 months ago

I did, within a virtual environment. The code runs fine with the updated flask and Jinja versions, despite the age. I understand if code this old isn't being maintained. I only submitted it as an issue in case it helped anyone else still following your tutorial who wanted to get the example code working again.