> "Most popular" packages, which ones? Most moved a long time ago to Python 3
There's Fabric3, MySQL libs that work with Python3 (and Django), futures are a backport of a feature from Python3, uWSGI and BeautifulSoup might be worrying but the site shows mostly green
At this point if the library hasn't been ported to Py3, someone else would have done it for you or abandoned it.
Edit: Thanks for the updates!
uWSGI has Python3 support as a module.
I have been using both on Python3 for many years. I don't think there is any python module left which does not have Python3 support or a more modern, better alternative.