Swap cases in a string

Question

I\'m trying to solve this challenge in hackerrank, which asks to convert all lowercase letters to uppercase letters and vice versa.

I attempt it with the following code:

Answer 1

As said in comments and othe answers, strings are immutable.

Try following:

s = input("Enter input: ")


def convert(ss):
    # Convert it into list and then change it
    newSS = list(ss)
    for i,c in enumerate(newSS):
        newSS[i] = c.upper() if c.islower() else c.lower()
    # Convert list back to string
    return ''.join(newSS)

print(s)
print(convert(s))

# Or use string build in method
print (s.swapcase())