(original) (raw)

Hey Tarek,

I would write that as any(x is None for x in it) -- the example you gave doesn't really strike me as an improvement over that, although I could see how many there are cases where it's nicer...

On Wed, Jan 16, 2013 at 11:30 AM, Tarek Ziad� <tarek@ziade.org> wrote:

Hello

any() and all() are very useful small functions, and I am wondering if it could be interesting to have them work
with different operators, by using a callable.

e.g. something like:

import operator  

def any(iterable, filter=operator.truth):  
 for element in iterable:  
 if filter(element):  
 return True  
 return False

For instance I could then us any() to find out if there's a None in the sequence:

if any(iterable, op=lambda x: x is None):  
 raise SomeError("There's a none in that list")  

Granted, it's easy to do it myself in a small util function - but since any() and all() are in Python...


Cheers
Tarek

--   
Tarek Ziad� � http://ziade.org � @tarek\_ziade 

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cheers

lvh

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