Message 394315 - Python tracker

Guido: "I don’t think we’re waiting for more crazy hacks."

Right now, _ast.AST is still mutable:

$ ./python
Python 3.11.0a0 (heads/subtype_dealloc-dirty:efd45ad788, May 21 2021
>>> import _ast
>>> _ast.AST.x=1
>>> _ast.AST.x
1