Description

Oscar65

opened on Dec 5, 2025

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Crash report

What happened?

I was running this line on python -i from emacs:

>>> numbers = {random.tandint(1,100) for i in range(10)}
Traceback (most recent call last):

Process Python violación de segmento (core dumped)

I had previously 9 "SintaxError: invalid syntax".

I repeated all steps from beginning in python -i from emacs and I cannot reproduce error.

I attached gdb (bt full, info threads and thread apply all bt) with symbols.

I use Archlinux with kernel 6.17.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 24 Nov 2025 15:21:09 +0000 x86_64 GNU/Linux

gdb_Python3.13.txt

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Output from running 'python -VV' on the command line:

Python 3.13.7 (main, Aug 15 2025, 12:34:02) [GCC 15.2.1 20250813]

Activity

1. Oscar65

   added

   type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

   on Dec 5, 2025
2. devdanzin

   added

   interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

   on Dec 5, 2025
3. devdanzin commented on Dec 5, 2025

   

   devdanzin

   on Dec 5, 2025

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   I can't reproduce either with just that line (which raises an AttributeError), nor with a fixed version of that line.

   If you can better describe what exactly "running python -i from emacs" means (steps to match what you did) plus what code was causing the SyntaxError, it might be possible to reproduce. Also, any information about your emacs environment (e.g. were you using a LSP?) could help.

   I hope the backtrace is enough for someone to diagnose this issue.

   Thanks for the report!
4. StanFromIreland commented on Dec 5, 2025

   

   StanFromIreland

   on Dec 5, 2025

   Member

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   I also cannot reproduce, in emacs:

   
5. StanFromIreland

   added

   pendingThe issue will be closed if no feedback is providedThe issue will be closed if no feedback is provided

   on Dec 5, 2025
6. Oscar65 commented on Dec 6, 2025

   

   Oscar65

   on Dec 6, 2025

   Author

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   I can't reproduce either with just that line (which raises an AttributeError), nor with a fixed version of that line.

   If you can better describe what exactly "running python -i from emacs" means (steps to match what you did) plus what code was causing the SyntaxError, it might be possible to reproduce. Also, any information about your emacs environment (e.g. were you using a LSP?) could help.

   I hope the backtrace is enough for someone to diagnose this issue.

   Thanks for the report!

   I tell you that I can't reproduce. I attached bt with debug symbols. Maybe with this information you can realize why it happens.

   In emacs text mode I opened a python file and press CTRL+C+P that opens a new buffer with Python interpreter. Then in this new buffer I typed some commands causing Python's core dump.
7. StanFromIreland commented on Feb 8, 2026

   

   StanFromIreland

   on Feb 8, 2026

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   I was unable to reproduce this in emacs, without a reproducer this it will be difficult for us to fix this issue, as such I will close this.
8. StanFromIreland

   closed this as not plannedon Feb 8, 2026

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