How Can I Gracefully Handle Ctrl C Interrupts (SIGINT) in Python?

Handling SIGINT Signals in Python

In Python, you can respond to SIGINT signals (generated by pressing Ctrl C) by utilizing the signal.signal function. This function registers a handler function that will be executed when the specified signal is received. Here's an example demonstrating how to achieve the same functionality as the provided Perl code:

import signal
import sys

def signal_handler(sig, frame):
    print('You pressed Ctrl+C!')
    sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)
print('Press Ctrl+C')
signal.pause()

In the above code:

• signal_handler is the registered handler function. When the SIGINT signal is received, this function is called and prints a message to indicate that Ctrl C was pressed. It then exits the script.
• signal.signal registers the signal_handler function as the handler for SIGINT.
• print('Press Ctrl C') prints a message to the console asking the user to press Ctrl C.
• signal.pause() enters the event loop and waits for signals to be delivered. When SIGINT is received, the signal_handler function is executed, and the script exits.

This code provides an effective way to gracefully handle SIGINT signals in Python and perform cleanup actions before exiting the script.

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