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Python Build a Social Network with Flask Broadcasting Add Some Layout

Chen Wang
Chen Wang
7,371 Points

How to debug in flask??

I tried to put the layout.html file in my local environment. I almost follow each step in the video. Just when I add the layout, it can't work.

Here is the error message I see when I try to visit the page: https://gist.github.com/anonymous/ee142e5ee8294b606b84

Actually, can anyone tell me how to debug using this example. I'm new in python web development. When there is a bug, I don't know how to figure it out.


1 Answer

Hubert M
Hubert M
9,633 Points


You propably don't wait for answer anymore, but I had same issue. Error was due to this line in layout.html:

{{ url_for('stream', username=current_user.username) }}

stream does not exist in app.py at this point. I've commented <nav> tag and everything worked fine.

Best regards