[Tutor] project euler #4

[Alan Gauld]

On 12/05/2020 02:19, Mats Wichmann wrote:
> On 5/11/20 5:39 PM, Alan Gauld via Tutor wrote:
>> On 11/05/2020 19:08, Mats Wichmann wrote:
>>>
>>> def isPalindrome(n):
>>>     n = str(n).casefold()  # eliminate any string case differences
>>

>     Casefolding is similar to lowercasing but more aggressive because it
> is intended to remove all case distinctions in a string. For example,
> the German lowercase letter 'ß' is equivalent to "ss". Since it is
> already lowercase, lower() would do nothing to 'ß'; casefold() converts
> it to "ss".

Aha! We don't have any equivalent ambiguities in English so no
wonder I couldn't find a difference. Thanks for clarifying.


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Alan G
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