If our string is “hello”
we can make it upper with upper()
s=”hello”
s.upper()
it will be HELLO
And in the same way if we want to make it lowercase
we will just use
lower()
s.lower()
It will again hello
The code
x="Hello"
print(x.lower()) #hello
print(x) #Hello
x=x.lower()
print(x) #hello
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