How to create an exit message

Question

Is there a one line function call that quits the program and displays a message? I know in Perl it\'s as simple as:

die(\"Message goes here\")

Answer 1

If you want to denote an actual error in your code, you could raise a RuntimeError exception:

raise RuntimeError, 'Message goes here'

This will print a stacktrace, the type of the exception being raised and the message that you provided. Depending on your users, a stacktrace might be too scary, and the actual message might get lost in the noise. On the other hand, if you die because of an actual error, a stacktrace will give you additional information for debugging.