"AssertionError: SRE module mismatch" in /main/Lib/tokenize.py

[iladshyan]

Bug report

Bug description:

There is an AssertionError when running /main/Lib/tokenize.py.

python --version
Python 3.11.1

Here is the Traceback:
Traceback (most recent call last):
File "c:\Users<USER>\py\cpython\Lib\tokenize.py", line 33, in
import re
File "c:\Users<USER>\py\cpython\Lib\re_init_.py", line 126, in
from . import _compiler, _parser
File "c:\Users<USER>\py\cpython\Lib\re_compiler.py", line 18, in
assert _sre.MAGIC == MAGIC, "SRE module mismatch"
^^^^^^^^^^^^^^^^^^^
AssertionError: SRE module mismatch

I am somewhat new to this by the way.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

[Eclips4]

Hello!
This often happens when you switching through the branches and forget to clean repository.
Try this:

git clean -fdx
pcbuild/build.bat -c Debug

[iladshyan]

Hello!

This often happens when you switching through the branches and forget to clean repository.

Try this:

git clean -fdx

pcbuild/build.bat -c Debug

Thank you for the quick response! I'll try out your fix, will update you on it soon.

[JelleZijlstra]

This can also happen if you use an installed Python to run code from the repository directly.

[terryjreedy]

I have gotten this or similar just from not recompiling after an update.

[iladshyan]

This can also happen if you use an installed Python to run code from the repository directly.

This should be it. I didn't know you have to run the tokenizer from the builded python, I thought it was just a normal python script and ran it in my installed python. My bad