En Mon, 05 Nov 2007 12:57:15 -0300, Tim Chase
<[EMAIL PROTECTED]> escribió:
> To confuse matters, it happens to work in your example, because a
> string is an iterable that returns each character in that string
> as the result, so code like this
>
> f.writelines('hello\n')
>
> is effectively doing something like this
>
> f.write('h')
> f.write('e')
> f.write('l')
> f.write('l')
> f.write('o')
> f.write('\n')
>
> (unless writelines is optimized to smarten up the code here)
As of 2.5.1, it's not :(
writelines is perhaps one of the worst used functions in Python. It'b been
there for ages (since 1.5.2 at least) but a lot of people does not know it
even exists (and roll their own, *always* slower; map(f.write, lines)
appears to be the favorite spelling...) or, if they are aware of it, use
it wrongly as you pointed out above.
Perhaps some of them come from Delphi/Pascal, looking for something
similar to writeln, and writelines is the closest match...
--
Gabriel Genellina
--
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