convert lower case to upper in python code example

Example 1: python to uppercase

text = "Random String"
text = text.upper() #Can also do 
text = upper(text)
print(text)

>> "RANDOM STRING"

Example 2: from uppercase to lowercase python

# By Alan W. Smith and Petar Ivanov
s = "Kilometer"
print(s.lower())

Example 3: python uppercase

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