xml.etree.cElementTree removed from Python 3.9 in favour of xml.etree.ElementTree

[tirkarthi]

Places : https://github.com/mgedmin/check-manifest/search?q=celementtree&unscoped_q=celementtree

Ref : python/cpython#19108

[tirkarthi]

I will raise a PR for this issue.

[mgedmin]

Thank you for the heads up!

The last time I tried to run tox on 3.9a3 the main problem was that I'm still using nose as the test runner, and nose didn't work on 3.9 (AttributeError: module 'collections' has no attribute 'Callable'). There was an attempt to switch to pytest (#92), but it foundered on a pytest problem.

It looks like some of the removals have been reverted in 3.9a5, because tox -e py39 now passes for me. Ah, I see that I did a 'make install' without wiping the old installed tree, so I still had a cElementTree from the alpha 3. Doing a fresh install exposes the problem.

Again, thank you!

[tirkarthi]

You're welcome. Nose was also a candidate discussed to revert the collections related error to be introduced in Python 3.10. This xml related error was in latest alpha release.