repeat until keypressed

[jmp]

On 05/29/2017 03:14 PM, Poul Riis wrote:
> In good old pascal there was this one-liner command:
> repeat until keypressed
>
> Apparently there is no built-in analogue for that in python. I have explored several different possibilities (pyglet, keyboard, curses, ginput (from matplotlib) and others) but not managed to find anything that works the way I want.
>
> In the following example I just want to replace 'waitforbuttonpress' with something like 'continueuntilbuttonpress' if such a command exists. It could be  a mouseclick or a keystroke from the terminal, for instance 'shift', 'space' or some character.
>
> Poul Riis
>
>     ### The following two lines should be replaced by
>     ### something like "Go on until some key is pressed - then break"
>     if plt.waitforbuttonpress():
>         break

Hello,

What about

try:
   for i in range(20): plot1.plot([20*(sin(i/10)+1)],[cos(i/10)],'bo')
except KeyboardInterrupt:
   pass # you could also print a message

You'd be using CTRL+C to interrupt the loop.

jm