[Python-ideas] Adding an optional function argument to all() and any() builtins

[Bruce Leban]

It is an improvement if there's no function. I think

    any(i > 3 for i in foo)

is more readable than

    any(map(lambda i: i > 3, foo))

As to the original suggestion, the length of any(foo, test=bar) vs
any(map(bar, foo)) is about the same. So I think this doesn't make anything
simpler and unnecessarily adds complexity to any/all which then will
inevitably lead to suggestions to make other things more complicated to
match them.

--- Bruce
Learn about security: http://j.mp/gruyere-security



On Sun, Nov 21, 2010 at 12:20 PM, Masklinn <masklinn at masklinn.net> wrote:

> On 2010-11-21, at 21:11 , MRAB wrote:
> >
> > if any(mytestfunction(i) for i in mylist):
> >    foo()
>
> is not an improvement over `if any(map(mytestfunction, mylist))` or `if
> any(imap(mytestfunction, mylist))`
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