CODEWITHSUNDEEP
python
ppwater
ppwater

Reputation: 2277

How can I not stop the program when ctrl+C is pressed?

I am trying to not stop the program when the user press Ctrl + C.

Now it's like this:

(programm running)
...
(user press ctrl+c)
You pressed ctrl+c
breaks

What I want is:

(programm running)
...
(user press ctrl+c)
You pressed ctrl+c
not breaks

How can I do this? Is it impossible?

I tried this code:

try:
    while True: 
        userinput = input()
        if userinput == "stop":
            break
except (KeyboardInterrupt, SystemExit):
    print('You pressed ctrl+c')

I tried adding pass to except, but It doesn't give the expected output.

Upvotes: 0

Views: 563

Answers (3)

Rolnan
Rolnan

Reputation: 23

CTRL-C actually means send SIGINT signal to the progress, so you can just handle this signal by your own function.

import signal
import sys
def signal_handler(signal, frame):
    print("You pressed Ctrl+C - or killed me with -2")
    # sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
print("Press Ctrl+C")
signal.pause()

Upvotes: 0

Mohamed Elfaleh
Mohamed Elfaleh

Reputation: 31

you can easily implement the next step within the try & except or set a pass after it.

while True:
    try:
        userinput = input()
        if userinput == "stop":
            break
    except (KeyboardInterrupt, SystemExit):
        # or edit it to the next state in the program.
        pass

Upvotes: 1

dpwr
dpwr

Reputation: 2812

Move it inside the loop as I'm guessing you want to continue looping instead of exiting:

while True:
    try:
        userinput = input()
        if userinput == "stop":
            break
    except (KeyboardInterrupt, SystemExit):
        print('You pressed ctrl+c')
        # or just pass to print nothing

Upvotes: 4

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