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Python Python Basics (2015) Logic in Python Fully Functional

Joshua Sklodowska
Joshua Sklodowska
1,146 Points
Posted by Joshua Sklodowska
Joshua Sklodowska
1,146 Points

.lower

I've seen .lower used twice now and I don't understand what it does.He seems to be throwing it in there. I'm just curious. Not sure it's relevant to the challenges though.

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

The str (string) object has several methods available for operating upon itself. The method (so called because it is a function bound to an object) .lower() operates upon the string it is bound to, returning a lower-cased version of the string, but leaving the original string unchanged:

media$ python3
Python 3.4.0 (default, Jun 19 2015, 14:20:21) 
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> string = "CamelCaseString"
>>> string.lower()
'camelcasestring'
>>> string
'CamelCaseString'
patrickgardner
patrickgardner
7,395 Points
patrickgardner
patrickgardner
7,395 Points

This function converts a string to all lowercase. e.g. "FOO" would become "foo".