allow build documentation without have BTrees module installed

[kloczek]

This patch allow build documentation without have BTrees module installed.
It has been mentioned in #180.

[icemac]

pkg_resources is deprecated, so we should solve the issue without using it any more.

[kloczek]

pkg_resources is deprecated, so we should solve the issue without using it any more.

Yep .. but that is another issue 😄

[icemac]

Okay, we can replace pkg_resources later.

According to the contributing policies of the zopefoundation organization you need to sign a contributor agreement before any non-trivial change can be merged. For details please consult the Contributing guidelines for zopefoundation projects.

[kloczek]

I would suggest use packaging-sphinx https://sphinx-packaging.readthedocs.io/en/latest/

[kloczek]

According to the contributing policies of the zopefoundation organization you need to sign a contributor agreement before any non-trivial change can be merged. For details please consult the Contributing guidelines for zopefoundation projects.

I found only pdf with form to sign.
Is there any online sing form? 🤔

[icemac]

@kloczek There is only the PDF form. If you have a PDF editor (like Apples Preview.app) to fill it out you can do it paperless.

[kloczek]

I'm not using Apple (only Linux)

[icemac]

Is there any progress with the contributor agreement, so the PR can get merged?

[tseaver]

@icemac I do not believe that this PR contains any copyrightable changes: moving one import and adding src/ to the sys.path entries are trivial / non-original in terms of what copyright protects.

[tseaver]

@kloczek Thanks for your efforts!

This PR is no longer relevant after the application of the current meta templating to docs/conf.py (PR #211).

[kloczek]

Thank you 👍