import this

help(this)

>>> from this import hi  # hello, intro
Short introduction of yourself is better than "hello".

>>> from this import gist  # source
Link to gist is better than source paste.

>>> from this import spam  # long_better
One long message is better than many short.

>>> from this import edit  # correct
Editing the message is better than correcting via another one.

>>> from this import topic  # offtopic
Staying on topic is better than offtopic.
Good topic is worth discussing though.
Unless it is started by a link to Habrahabr.

>>> from this import ask
Don't ask to ask just ask.

import __hello__