The SIGKILL signal is used to cause immediate program termination. It cannot be handled or ignored, and is therefore always fatal. It is also not possible to block this signal. This signal is usually generated only by explicit request.

How do you catch a SIGKILL in Python?

SIGKILL by its very nature cannot be trapped. The SIGKILL signal is sent to a process to cause it to terminate immediately (kill). In contrast to SIGTERM and SIGINT, this signal cannot be caught or ignored, and the receiving process cannot perform any clean-up upon receiving this signal.

Can sigint be caught?

SIGINT , though, is the kind of signal that can be handled, meaning that the user may register a custom function to be executed when the process receives the signal. … Usually, it should stop executing the while loop, print the “Caught SIGINT!” string and exit with success status code.