Not x.islower() has different output than x.isupper() in list output...

[DFS]

On 5/3/2016 8:00 AM, Chris Angelico wrote:
> On Tue, May 3, 2016 at 9:25 PM, Jussi Piitulainen
> <jussi.piitulainen at helsinki.fi> wrote:
>> Chris Angelico writes:
>>
>>> This assumes, of course, that there is a function swapcase which can
>>> return a string with case inverted. I'm not sure such a function
>>> exists.
>>
>>    str.swapcase("foO")
>>    'FOo'
>
> I suppose for this discussion it doesn't matter if it's imperfect.


What was imperfect?