On 5/3/2016 9:13 AM, Chris Angelico wrote:
On Tue, May 3, 2016 at 11:01 PM, DFS <nos...@dfs.com> wrote:
On 5/3/2016 8:00 AM, Chris Angelico wrote:
On Tue, May 3, 2016 at 9:25 PM, Jussi Piitulainen
<jussi.piitulai...@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?
It doesn't invert, the way numeric negation does.
What do you mean by 'case inverted'?
It looks like it swaps the case correctly between upper and lower.
And if you try to
define exactly what it does, you'll come right back to
isupper()/islower(), so it's not much help in defining those.
ChrisA
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