Is there a method that tells my program to quit? Question: For the “q” (quit) option in my program menu, I have the following code: elif choice == “q”: print() That worked all right until I put it in an infinite loop, which kept printing blank lines. Is there a method that can quit the …
Python subprocess: callback when cmd exits Question: I’m currently launching a programme using subprocess.Popen(cmd, shell=TRUE) I’m fairly new to Python, but it ‘feels’ like there ought to be some api that lets me do something similar to: subprocess.Popen(cmd, shell=TRUE, postexec_fn=function_to_call_on_exit) I am doing this so that function_to_call_on_exit can do something based on knowing that the …
How to exit from Python without traceback? Question: I would like to know how to I exit from Python without having an traceback dump on the output. I still want want to be able to return an error code but I do not want to display the traceback log. I want to be able to …
How to run one last function before getting killed in Python? Question: Is there any way to run one last command before a running Python script is stopped by being killed by some other script, keyboard interrupt etc. Asked By: dan || Source Answers: import signal import sys import time def cleanup(*args): print ‘Exiting’ sys.exit(0) …
How do I abort the execution of a Python script? Question: I have a simple Python script that I want to stop executing if a condition is met. For example: done = True if done: # quit/stop/exit else: # do other stuff Essentially, I am looking for something that behaves equivalently to the ‘return’ keyword …
Is there a way to prevent a SystemExit exception raised from sys.exit() from being caught? Question: The docs say that calling sys.exit() raises a SystemExit exception which can be caught in outer levels. I have a situation in which I want to definitively and unquestionably exit from inside a test case, however the unittest module …
