Weird AST constructor issue with mode="max-autotune" with python 3.11

[Chillee]

Weird AST constructor issue with mode="max-autotune" with python 3.11

[eellison]

I just setup a pytorch-311 build and can't repro this. Python 3.11.9. Do you have to run multiple times to repro or does it happen consistently?

[Chillee]

@eellison hmm.. this script repros it consistently for me. Like, when you run it, it goes through compilation for all the shapes without erroring?

[eellison]

That's correct

[cpuhrsch]

I tried to get it to repo on CI in #125331 but it seems to have green / with an unrelated failure. The error is definitely real though, because we see it in AO here: pytorch/ao#197

[eellison]

What python version are you specifically ?

[eellison]

There is an AST Parsing bug that was fixed in 3.11.8: pytest-dev/pytest#11724 (comment).

I'm using 3.11.9 here so maybe that explains it.

Can @Chillee or @cpuhrsch give your 3.11 versions ?

[Chillee]

Yeah i'm on 3.11.7

[eellison]

I guess we can disable precompilation from 3.11.0 to 3.11.7 and print a warning.

which has been around in that form in python3.11 releases since 3.11.0b4 up to and including 3.11.7.