Question

how do I use the "upper()" command in python?

not only that, but how do I use the "lower()" command in python?

Answer 1

Examples:
string = "abcDeFGhijKLMNopqrstuvwXyZ"

upper_string = string.upper()

lower_string = string.lower()

print(string) ---> "abcDeFGhijKLMNopqrstuvwXyZ"
print(upper_string) ---> "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
print(lower_string) ---> "abcdefghijklmnopqrstuvwxyz"

The "upper()" method makes all lowercase characters in "string" variable to uppercase.
And the "lower()" method makes all uppercase characters in "string" variable to lowercase.

That's pretty much it.