importing numpy shows warning when running in mod_wsgi

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I am running a Flask application in Apache using mod_wsgi. When I try to import numpy, I get the following warning:

/usr/local/lib/python3.8/dist-packages/scipy/__init__.py:67: UserWarning: NumPy was imported from a Python sub-interpreter but NumPy does not properly support sub-interpreters. This will likely work for most users but might cause hard to track down issues or subtle bugs. A common user of the rare sub-interpreter feature is wsgi which also allows single-interpreter mode. Improvements in the case of bugs are welcome, but is not on the NumPy roadmap, and full support may require significant effort to achieve.

Should I do anything to address this warning?

mod-wsgi numpy python
1 Answers

Following the information here, you can eliminate the warning (and prevent potential problems) by adding

WSGIApplicationGroup %{GLOBAL}

to your httpd.conf.

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