How to stop inifinite loop with specific key instead of keyboard Interrupt exception?

Question

Simplified version of code is below. In the while loop I normally process data from serial port and measurement is not limited by time or any value. I want to stop execution with key anytime i need to stop.

try-except is easiest way but it will affect also main code it is implemented. It is not good option in my case. I couldn't find how to fit keyboard monitoring here enter link description hereinto class and also same for signals. I would like to insert an if-statement which calls other function in class to stop execution of loop. Any help would appreciated. Thanks

import time

class Something:

    def __init__(self):
        self.looping()

    def looping(self):
        i=0
        while True:
            i+=1
            time.sleep(1)
            print(i)

some=Something()

Why would a try / except KeyboardInterrupt affect the rest of your code? — roganjosh
– roganjosh, Commented Nov 22, 2018 at 10:15
You could create a second thread that changes a variable value on keyboardinput. And let the main thread run the while loop while variable True. — Stef van der Zon
– Stef van der Zon, Commented Nov 22, 2018 at 10:24

Srce Cde · Accepted Answer · 2018-11-22 10:21:19Z

1

import time
class Something:
    def __init__(self):
        self.looping()

    def looping(self):
        i=0

        while True:
            try:
                i+=1
                time.sleep(1)
                print(i)
            except KeyboardInterrupt:
                break
some=Something()

edited Nov 22, 2018 at 10:21

answered Nov 22, 2018 at 10:17

Srce Cde

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1 Comment

Carmelo Over a year ago

I did this but instead of this, i would like assign a key for break. not ctrl+c

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