Is it possible to cancel a prompt?

[Verequies]

I have an issue where when I lose connection to server, my program cleanly terminates, however the complete termination of the program is blocked till I press enter ( due to it being stuck in the input ). Normally once text has been entered, it would check if the connection is still alive before requesting another input.

Is it possible to cancel a prompt when it detects a variable change?

[jonathanslenders]

Hi @Verequies,

Yes, this is possible. Something like the following code should work. Can you give it a try?

from prompt_toolkit.application import get_app
get_app().exit()

[Verequies]

Thanks heaps! I didn't do it quite that way as I'm not actually using the application. I did it using:

import prompt_toolkit

prompt = prompt_toolkit.PromptSession()

# In some thread
prompt.prompt('message: ')

# In base thread, exit is called
prompt.app.exit()

[jonathanslenders]

That looks even better, because you refer to the specific app instance in particular. It's better then calling get_app.

[Verequies]

Yep! That's the main reason I did it this way. Perhaps an example could be added to the documentationfor this implementation?

Anyhow I'll close this issue now as its solved.