Solution Review: Lower To Uppercase

This lesson will help you change the case of the string using a built-in function.

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Solution: Use str.upper() and str.lower()

Given a string “str”, use str.upper() to convert the string ‘str’ to upper case, and use str.lower() to convert string ‘str’ to lower case.

For example,

Given a string

str = "AAA bbb CCC"
a = str.upper()
b = str.lower()

Output: 
AAA BBB CCC
aaa bbb ccc

The following python code demonstrates how to change the letter case of a string.

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