Oh! this is very nice: $ python2.5 Python 2.5 (r25:51908, Sep 27 2006, 12:21:46) [GCC 3.3.5 (Debian 1:3.3.5-13)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> any built-in function any >>> all built-in function all >>> print any.__doc__ any(iterable) -> bool Return True if bool(x) is True for any x in the iterable. >>> print all.__doc__ all(iterable) -> bool Return True if bool(x) is True for all values x in the iterable. >>> any([1,2]) True >>> all([1,2]) True >>> any([1,0]) True >>> all([1,0]) False Hey, I have made few edits here, (blame livejournal's `pre` tag), noticed it ? :)