Python equivalent of Perl's 'warn'?

Question

I'm trying to write a very simple address book webapp in Python. I'm new to Python but have had a fair amount of time writing in Perl, I want to know what is the equivalent to Perl's warn function in Python 3.6.

Answer 1

If you are looking for the equivalent of raising warnings you can use pythons warnings module like so:

from warnings import warn

warn('Your message here', Warning)

This will display __main__:1: Warning: my message here on stderr.

If you are looking for the equivalent of raising errors you can use pythons Exception class like so:

raise Exception('Your message here')

This will display Exception: Your message here on stderr.