How to prevent termination of a running program using "ctrl+c" in Linux using python?

Question

I have written a piece of code in python, in which I am asking questions and users should give their input. Sometimes, these questions are difficult for the user to understand(they are non-english). So most of the time they want to copy paste the sentence into google translate. However, since this code is running in the command prompt,they have to select the text and using "right click --> copy" they can copy the text into google translate. Sometimes, by mistake the press "ctrl+c"(it is natural for everyone to use this combination for copying). Doing this will terminate the code, and they have to start over. I need to know I can prevent this from happening. In other words, if they press "ctrl+c" nothing happens and my software doesn't abort. thanks

handle an exception, see: stackoverflow.com/questions/5803676/… — AnalyticsBuilder
– AnalyticsBuilder, Commented May 16, 2011 at 15:01
@Dragan: catching KeyboardInterrupt doesn't facilitate to completely ignore Ctrl-C during raw_input() calls. — Sven Marnach
– Sven Marnach, Commented May 16, 2011 at 15:06

tMC · Accepted Answer · 2011-05-17 15:25:51Z

2

import signal
def SigIntHand(SIG, FRM):
    print("Please Right click-copy. Ctrl-C does not work on the cmd prompt")

signal.signal(signal.SIGINT, SigIntHand)

or if you want it completely ignored:

import signal
signal.signal(signal.SIGINT, signal.SIG_IGN)

edited May 17, 2011 at 15:25

answered May 16, 2011 at 15:15

tMC

19.5k15 gold badges68 silver badges102 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

tMC Over a year ago

WTF? if you're going to give me a down vote, why not tell me why? Does this not work?

tMC Over a year ago

I think a comment indicated I transposed the options in the signal handler is more useful than a vote down with no explanation. I fixed it.

Community · Accepted Answer · 2017-05-23 12:26:00Z

2

When you hit ctrl+c it sends SIGINT to the running process. You can catch it as described here.

You can find more about the different types of signals here.

edited May 23, 2017 at 12:26

CommunityBot

11 silver badge

answered May 16, 2011 at 15:00

wting

9202 gold badges13 silver badges27 bronze badges

Comments

Johan · Accepted Answer · 2011-05-16 14:56:50Z

0

If using X, the text is normally copied to the clipboard once it's selected. Just paste it using middle mouse button or Shift+insert.

answered May 16, 2011 at 14:56

Johan

5,0733 gold badges38 silver badges50 bronze badges

Collectives™ on Stack Overflow

How to prevent termination of a running program using "ctrl+c" in Linux using python?

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related