What is the difference between Ctrl-C and SIGINT?
^C sends a SIGINT to all the processes in the foreground process group. To do the equivalent with kill, you should send the signal to the process group (OS-level concept):
kill -SIGINT -<pid>or to the job (shell-level concept, the pipeline ended with &):
kill -SIGINT %
As described here :
Python installs a small number of signal handlers by default: SIGPIPE is ignored (so write errors on pipes and sockets can be reported as ordinary Python exceptions) and SIGINT is translated into a KeyboardInterrupt exception. All of these can be overridden.
so, the behaviour should be the same between sending a SIGINT and a Ctrl + c.
But, you have to be carefull with the KeyboardInterrupt, if somewhere in your code you've got a
try: ...except: # notice the lack of exception class passthis will "eat" the KeyboardInterrupt exception.