Replace deprecated imp module with importlib

[hugovk]

This project uses the imp module which has been deprecated since Python 3.4 and removed in 3.12:

• Raised PendingDeprecationWarning since 3.4 (2014)
• Raised DeprecationWarning since 3.5 (2015)
• Updated DeprecationWarning to say removal in 3.12 since 3.10 (2021)
• Removal planned for 3.12 (2023)

Python 3.12 is set for release on 2023-10-02 and this library is one of the top 5,000 most-downloaded from PyPI.

Please could you upgrade to use importlib? The imp docs have suggestions on what to use to replace each function and constant.

[kpfleming]

Unfortunately this code uses imp.load_source which is not part of the imp documented API, so replacing it will be non-trivial.

[jvilhuber]

I just had to upgrade to python 3.12, and can no longer use j2cli. Any updates on this? Time just ran out (for me anyway).

[kpfleming]

If you don't need to use --filters or --tests, you can use the fork at https://github.com/kpfleming/j2cli; it has that functionality removed so that it will be compatible with Python 3.12. Over the next week I'll be re-implementing that functionality in a way that is more well supported and extensible.

[kpfleming]

It took 2 weeks... but I've now published Jinjanator which resolves this issue by adding a much more flexible and less invasive plugin mechanism. It's being tested against Python 3.12 already.

[kolypto]

Hi!
This project gets some interest, but sadly, I'm not maintaining it =\

Maintainer wanted!
Discussion: Maintainer Wanted