"Warning: We detected the use of uwsgi with disabled threads" when using Sentry/Raven with Django and PythonAnywhere

Question

Using Django with Sentry/Raven, I am frequently getting the following error :

/lib/python3.6/site-packages/raven/utils/compat.py:216: Warning: We detected the use of uwsgi with disabled threads. This will cause issues with the transport you are trying to use. Please enable threading for uwsgi. (Enable the "enable-threads" flag).

So, ironically, it seems the error is coming from raven itself.

It looks like I need to enable threading for uwsgi. However, to my knowledge, PythonAnywhere does not support threading (is this right ?).

How can I prevent these errors from showing up ? Are they causing anything damaging apart from these reports ? They don't seem to be affecting the user experience at all.

Note : I found this thread on the Sentry github that seems to reference the same issue, but I'm not sure how to go from here.

Answer 1

enable-threads allow sentry raven to send messages in a thread and not block your application. So enabling it should be recommended.

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