On Thu, 21 Apr 2005 09:59:54 -0500, Larry Bates <[EMAIL PROTECTED]> wrote:
>2) Or if you not you could see if the argument has next and >__iter__ methods (more general solution) > >if hasattr(arg, 'next') and not hasattr(arg, '__iter__'): > # perform work on iterable > >else: > print "arg must be an iterable" > >>> alist = ['Think', 'before', 'posting!'] >>> hasattr(alist, 'next') False ===>>> Fails the first leg of your test for iterability. >>> for wd in alist: ... print wd ... Think before posting! ===>>> Looks iterable to me!! In any case, trying to define "isiterable(x)" in terms of x having or not having particularly-named attributes doesn't seem to me to be a very good idea. It's what the method *does* that matters. Other ways of doing it may be invented. Such a definition has about the same level of future-proof correlation between cause and effect as "We waved a dead chicken at the volcano and it stopped erupting". Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
