decrease memory consumption, use importlib.metadata to get package version instead of pkg_resources.get_dictribution

[akayunov]

pkg_resources use a lot of memory and after introducing importlib.metadata in 3.8 looks obsolete. So let's change way to get package version and get rid of pkg_resources import.

[akayunov]

Do we really need tests like these: cerberus/tests/test_assorted.py:23?

[funkyfuture]

thanks for bringing this up. i think this would be well covered as the test suite runs on all supported platforms.

could you please check whether the importlib_metadata object could be defined in and imported from the platform module?

you may have noticed that development has stalled for a while and it will take such to merge and release this pr.

[funkyfuture]

oh, iirc this test is covering some edge case. please try to do some research in the commit / pr / issues history.

[slanzmich]

Is there any chance to get this merged and released? If yes, I can provide a fix for the tests in cerberus/tests/test_assorted.py.

[evelikov]

@funkyfuture sorry to bother, but can we get this merged (or variation thereof) and a new release? Thanks in advance

[funkyfuture]

solved w/ 81e2dfd