After upgrading to splunk enterprise 9.3 our splunk app is not able to find python modules

[sbel]

Our Splunk Add-on app was created with python modules ( like cffi, cryptography and PyJWT) where these modules are placed under app /bin/lib folder..  this add-on is working as expected.

When we try to upgrade Splunk Enterprise from 8.2.3  to 9.3,  our add-on is failing to load python modules and throwing error 'No module named '_cffi_backend' 

Note: we are running on python 3.7. and updated Splunk python SD to latest 2.0.2

[Meett]

Hey @sbel If you are using Splunk v9.3 then your app should be compatible with Python v3.9 by default.

For temporary time you can try to use this if it can help you but for long term you have to make apps compatible to Python v3.9.0
$SPLUNK_HOME/etc/system/local/server.conf/[general]/python.version = python3.9