To end a while loop prematurely in Python, press
CTRL-C while your program is stuck in the loop. This will raise a
KeyboardInterrupt error that terminates the whole program. To avoid termination, enclose the while loop in a try/except block and catch the
You can see the idea in the following code snippet:
try: while True: pass # Do something except KeyboardInterrupt: pass # Do something. Program doesn't terminate after CTRL-C print('hello world')
The while loop runs forever unless you end it prematurely using the
CTRL-C hotkey. But if you do, it prints the string
'hello world' to the shell instead of terminating the whole program:
Let me show you how this works in the following GIF:
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