[Python-Dev] Small any/all enhancement (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Wed Dec 28 11:00:41 CET 2005

Eric Nieuwland wrote:

all(o==0 for o in someobjects) ?

all() can be terminated at the first false element. For very long sequences this has important performance benefits. Besides, it makes all(seq,pred) the equivalent of pred(seq[0]) and pred(seq[1]) and pred(seq[2]) and ...

And so does the version with generator expressions: Alex' expression will also terminate with the first false statement; it is equivalent to some_objects[0]==0 and some_objects[1]==0 and ...

Regards, Martin

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