How do I use the Signal module in Python?

How do I use the Signal module in Python?

The Signal module in Python is used for handling asynchronous events. What specific functionality are you interested in?

I want to know how to send signals between threads.

You can use the signal module to set up handlers for signals. For thread communication, consider using queue or Event objects.

Can you give me a code example?

Sure! Here's a simple example:

import signal
import time
import threading

# Define a signal handler
def handler(signum, frame):
    print('Signal received!')

# Register the signal handler
signal.signal(signal.SIGINT, handler)

# Function to simulate a long-running process
def long_running_process():
    while True:
        print('Working...')
        time.sleep(1)

# Start the long-running process in a thread
thread = threading.Thread(target=long_running_process)
thread.start()

What happens if I send a signal while the thread is running?

If you send a signal while the thread is running, the signal handler will be executed, allowing you to handle the signal appropriately.