Iterators membership testing
breamoreboy at yahoo.co.uk
Sun Aug 9 15:45:20 CEST 2015
On 09/08/2015 14:11, Chris Angelico wrote:
> On Sun, Aug 9, 2015 at 11:09 PM, Tim Chase <tim at thechases.com> wrote:
>> On 2015-08-09 19:24, Chris Angelico wrote:
>>> That's exactly right. The only way for the interpreter to handle
>>> 'in' on an iterator is something like this:
>>> def contains(iter, obj):
>>> for val in iter:
>>> if val == obj: return True
>>> return False
>> Which can nicely be written as
>> any(i == obj for obj in iter)
> Indeed it can, although I'm not sure whether it'd just have been
> another step in the explanation :) Whether or not that makes perfect
> sense depends on the reader.
This one probably won't make make sense to most readers.
any("Australian batsmen scored any() runs recently?")
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
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