python to uppercase

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

>> "RANDOM STRING"

str.lower()

original = Hello, World!

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

message="hi"
print(message)
print(message.upper())

string.upper()
Parameters:
upper() does not take any parameters
Returns :
It converts the given string in into uppercase and returns the string.

>>> s = 'sdsd'
>>> s.upper()
'SDSD'