[collectd] Importing external Python modules

[adl1995]

I'm writing a Collectd plugin that calls an external API. For this I wish to
use the requests Python library. In my collectd.conf file I added:

LoadPlugin python
<Plugin python>
 ModulePath "/usr/lib/collectd/"
 Import "module_name"
 <Module module_name>
 ...
 </Module>
</Plugin>
In my Python file I imported the packages with:
import collectd
import requests
But I am faced with this error when I start Collectd:

Apr 23 17:51:30 home collectd[100272]: python plugin: Error importing module
"need_restart".
Apr 23 17:51:30 home collectd[100272]: Unhandled python exception in
importing module: ImportError: dynamic module does not define module export
function (PyInit_email)
When I remove the import requests line the error disappears. Do I need to
provide a path to the external Python packages to import them? From what I
understand Collectd launches its own Python interpreter, which might explain
the issue with the import.
I did try providing a path to my site-packages, but all in vain:

 ModulePath "/usr/lib/python3.8/site-packages/"




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