Consolidate pickle compatibility code.

Review Request #14828 — Created Feb. 19, 2026 and updated

Information

Django Evolution
master

Reviewers

The django_evolution.compat.py23 module is now almost entirely empty,
having only a couple methods left for compatibility in pickle formats.
We also had pickle compatibility code living in compat.picklers, so
I've moved the stuff from py23 to there.

Ran unit tests.

Summary ID
Consolidate pickle compatibility code.
The `django_evolution.compat.py23` module is now almost entirely empty, having only a couple methods left for compatibility in pickle formats. We also had pickle compatibility code living in `compat.picklers`, so I've moved the stuff from py23 to there. Testing Done: Ran unit tests.
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Checks run (2 succeeded)
flake8 passed.
JSHint passed.