51 – String constants

51 – String constants#

The module string defines many useful constants that you can, and should, use! These will save you the time of defining the constants yourself and prevent plenty of easily-avoidable bugs.

Here are three examples:

import string

print(string.ascii_lowercase)
# abcdefghijklmnopqrstuvwxyz

print(string.digits)
# 0123456789

print(string.punctuation)
# !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~

If you find that this tip is silly, consider the fact that I found over 10,000 repositories on GitHub with bugs because they had typos when defining constants with the full latin alphabet. These bugs could have been avoided by using string.ascii_lowercase…