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


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