gh-117486: Improve behavior for user-defined AST subclasses by JelleZijlstra · Pull Request #118212

gh-117486: Improve behavior for user-defined AST subclasses by JelleZijlstra · Pull Request #118212 · python/cpython

Now, such classes will no longer require changes in Python 3.13 in the normal case.
The test suite for robotframework passes with no DeprecationWarnings under this PR.

I also added a new DeprecationWarning for the case where `_field_types` exists
but is incomplete, since that seems likely to indicate a user mistake.

SonicField pushed a commit to SonicField/cpython that referenced this pull request

May 8, 2024

…thon#118212)

Now, such classes will no longer require changes in Python 3.13 in the normal case.
The test suite for robotframework passes with no DeprecationWarnings under this PR.

I also added a new DeprecationWarning for the case where `_field_types` exists
but is incomplete, since that seems likely to indicate a user mistake.