Re: max(), sum(), next()

[Tino Wildenhain]

Hi,

Luis Zarrabeitia wrote:

Quoting Laszlo Nagy <[EMAIL PROTECTED]>:

...

Even better:

help(sum) shows

===
sum(...)
    sum(sequence, start=0) -> value

    of parameter 'start'.  When the sequence is empty, returns start.
===

so the fact that sum([]) returns zero is just because the start value is zero...
sum([],object()) would return an object().

BTW, the original code:

Returns the sum of a sequence of numbers (NOT strings) plus the value

sum(s for s in ["a", "b"] if len(s) > 2)

wouldn't work anyway... it seems that sum doesn't like to sum strings:

sum(['a','b'],'')

<type 'exceptions.TypeError'>: sum() can't sum strings [use ''.join(seq) 
instead]

If it makes sense to handle things differently for performance, then
please have it doing it silently, e.g. when it detects strings just
use join() internally.

Cheers
Tino

Yes which is a bit bad anyway. I don't think hard wiring it is such a nice idea. You know, walks like a duck, smells like a duck...

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