prompt-toolkit / prompt-toolkit/python-prompt-toolkit
CTRL-c during "Unhandled exception in event loop" leaves terminal in bad state
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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
- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
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.
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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