On 24 Jun 2005 19:09:05 +0400, Sergei Organov <[EMAIL PROTECTED]> wrote:
>Steven D'Aprano <[EMAIL PROTECTED]> writes: > >> On Fri, 24 Jun 2005 00:55:38 -0600, Joseph Garvin wrote: >> >> > I'm curious -- what is everyone's favorite trick from a non-python >> > language? And -- why isn't it in Python? >> >> Long ago, I used to dabble in Forth. You could say, the entire Forth >> language was a trick :-) It was interesting to be able to define your own >> compiler commands, loop constructs and so forth. >> >> One of the things I liked in Pascal was the "with" keyword. You could >> write something like this: >> >> with colour do begin >> red := 0; blue := 255; green := 0; >> end; >> >> instead of: >> >> colour.red := 0; colour.blue := 255; colour.green := 0; >> >> Okay, so maybe it is more of a feature than a trick, but I miss it and it >> would be nice to have in Python. > >... that quickly becomes quite messy: - When abused - >with A do begin > ..... > with B do begin > ..... > with C do begin > x := y; > end; > end; >end; Like many features that can be helpful when used well, and harmful when used poorly, it's not a simple question whether it should be in any given language. It also makes sense to consider whether other features already in the language can fill the same need (though I don't know Python well enough to address that yet). Even though I like "With" in VB and use it often, I always consider its use a warning that perhaps that code should be factored into the class somehow. -- http://mail.python.org/mailman/listinfo/python-list
