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Alright, so this is a palindrome
challenge solution. How did you get on?

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Did you manage to actually solve it?
Well there's 3 string methods you could have used,

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although .upper and .casefold
generally work better than .lower.

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I'll use .casefold in my solution.
The code we need to change is

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on line 9, which is where we perform the
comparison of the two strings. The code

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I'm going to add is, firstly, after the
right square bracket, we're going to add

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.casefold there, to call that method,
and then I'm going to add another equivalent

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call there, after string.casefold,
also leaving the parentheses in. Now that

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we've done that, both strings get
converted to lower case before we

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compare them. I'm going to run the program
again now and we'll test this out.

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I'll type in the word radar again, with a capital R.
This time you can see that it's working

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and we'll just try something else -
Python to make sure - it still fails,

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and that is working fine. Alright, so we
didn't actually have to change any of

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our main code. That's another advantage
of functions. When you fix a problem with

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your function, all the code that calls
it gets the advantage of the fix.

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Have a go, and I'll go over my solution to it

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in the next video.