what does upper do in python code example

Example 1: python upper

>>> funny = 'haha'
>>> print(funny.upper())
HAHA

Example 2: how do you change a string to only uppercase in python

original = Hello, World!

#both of these work
upper = original.upper()
upper = upper(original)

Example 3: python uppercase

my_string = "this is my string"
print(my_string.upper())
# output: "THIS IS MY STRING"