Bug report
Bug description:
In a really specific scenario, the terminal can go crazy and becomes unresponsive:
bug.mp4
Steps to reproduce:
Create an issue.py file, with a breakpoint set (echo 'breakpoint()' > issue.py).
Run issue.py in interactive mode: python -i issue.py
Press C to continue when hitting the breakpoint.
Start typing something, e.g. help(
Input Ctrl + D , as if you wanted to exit the terminal. Nothing happens (as it should).
Input Ctrl + C , as if you wanted to clear the line.
If no breakpoint was hit before, this works as expected:
> >> help ( # hit Ctrl + D then Ctrl + C
KeyboardInterrupt Note trying to reproduce on Python 3.12, the following happens:
- - Return - -
> / home / victorien / ws / pydantic / issue .py (1 )< module > ()- > None
- > breakpoint ()
(Pdb ) c
>> > help ( # hit Ctrl + D then Ctrl + C
Program interrupted . (Use 'cont' to resume ).
- - Return - -
> / home / victorien / .local / share / uv / python / cpython - 3.12 .7 - linux - x86_64 - gnu / lib / python3 .12 / pdb .py (271 )sigint_handler ()- > None
- > self .set_trace (frame )
Traceback (most recent call last ):
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/pdb.py" , line 271 , in sigint_handler
self .set_trace (frame )
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/bdb.py" , line 94 , in trace_dispatch
return self .dispatch_return (frame , arg )
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/bdb.py" , line 153 , in dispatch_return
self .user_return (frame , arg )
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/pdb.py" , line 362 , in user_return
self .interaction (frame , None )
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/pdb.py" , line 428 , in interaction
self ._cmdloop ()
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/pdb.py" , line 390 , in _cmdloop
self .cmdloop ()
File "/home/victorien/.local/share/uv/python/cpython-3.12.7-linux-x86_64-gnu/lib/python3.12/cmd.py" , line 126 , in cmdloop
line = input (self .prompt )
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
RuntimeError : can 't re - enter readline
>> > CPython versions tested on:
3.13
Operating systems tested on:
Linux
Bug report
Bug description:
In a really specific scenario, the terminal can go crazy and becomes unresponsive:
bug.mp4
Steps to reproduce:
issue.pyfile, with a breakpoint set (echo 'breakpoint()' > issue.py).issue.pyin interactive mode:python -i issue.pyhelp(If no breakpoint was hit before, this works as expected:
Note trying to reproduce on Python 3.12, the following happens:
CPython versions tested on:
3.13
Operating systems tested on:
Linux