If I implement this in python, it bothers me, that the function returns a None. Is there a better way for "exiting a function, that has no return value, if a check fails in the body of the function"?

Nov 3, 2013 · os.exit is a low-level system call that exits directly without calling any cleanup handlers. quit and exit exist only to provide an easy way out of the Python prompt.

A simple return statement will 'stop' or return the function; in precise terms, it 'returns' function execution to the point at which the function was called - the function is terminated without …

also sys.exit () will terminate all python scripts, but quit () only terminates the script which spawned it. David C. Over a year ago Do you know if this command works differently in python …

Jan 13, 2009 · Typically it is much better than raise e. Of course - you can also explicitly call import sys sys.exit(exitCodeYouFindAppropriate) This causes SystemExit exception to be …

Jan 26, 2010 · The default is to exit with zero. import sys sys.exit("aa! errors!") Prints "aa! errors!" and exits with a status code of 1. There is also an _exit () function in the os module. The …

131 You can use sys.exit() to exit from the middle of the main function. However, I would recommend not doing any logic there. Instead, put everything in a function, and call that from …

What sorts of methods exist for prematurely exiting an if clause? There are times when I'm writing code and want to put a break statement inside of an if clause, only to remember that those can …

May 2, 2015 · Just, return something, and if that is returned, then let your main function exit, either by falling off the end, by using a return statement, or calling sys.exit() / raise SystemExit.

Oct 3, 2010 · 193 How can you have a function or something that will be executed before your program quits? I have a script that will be constantly running in the background, and I need it …