Python/strings/lower.py
Christian Clauss 1f8a21d727
Tighten up psf/black and flake8 (#2024)
* Tighten up psf/black and flake8

* Fix some tests

* Fix some E741

* Fix some E741

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2020-05-22 08:10:11 +02:00

30 lines
640 B
Python

def lower(word: str) -> str:
"""
Will convert the entire string to lowecase letters
>>> lower("wow")
'wow'
>>> lower("HellZo")
'hellzo'
>>> lower("WHAT")
'what'
>>> lower("wh[]32")
'wh[]32'
>>> lower("whAT")
'what'
"""
# converting to ascii value int value and checking to see if char is a capital letter
# if it is a capital letter it is getting shift by 32 which makes it a lower case letter
return "".join(
chr(ord(char) + 32) if 65 <= ord(char) <= 90 else char for char in word
)
if __name__ == "__main__":
from doctest import testmod
testmod()