prompt-toolkit / prompt-toolkit/python-prompt-toolkit

CTRL-c during "Unhandled exception in event loop" leaves terminal in bad state

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bug
Dominant language
Python
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Description

The Application._handle_exception function will call _do_wait_for_enter which displays "Unhandled exception in event loop:"

When sending SIGINT with CTRL-c while waiting for input, the terminal is left in a "broken" state.

Any tips on how to resolve this without patching _do_wait_for_enter with a key binding for CTRL-c?

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start in prompt_toolkit/application/application.py at Application._handle_exception and _do_wait_for_enter. Reproduce the SIGINT case while waiting for input and inspect how the terminal state changes after the "Unhandled exception in event loop" prompt. Done means CTRL-c no longer leaves the terminal in a broken state without requiring a key binding patch.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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