Is there any way to optionally disable those collectors during usage? I would like to be able to disable those metrics from being generated except if they will actually be used.

A quick check on the code shows me that they are loaded from prometheus_client/__init__.py but there aren't (that I see) many options on that except by doing a PR with code modified.

I was able to see that trying to import resource on Microsoft Windows used to cause an exception, but the current version only ignores and generate constant values for those metrics:

Thanks!