On Fri, May 6, 2011 at 4:21 PM, Philip Semanchuk <[email protected]> wrote:
> What if it's not a list but a tuple or a numpy array? Often I just want to
> iterate through an element's items and I don't care if it's a list, set, etc.
> For instance, given this function definition --
>
> def print_items(an_iterable):
> if not an_iterable:
> print "The iterable is empty"
> else:
> for item in an_iterable:
> print item
>
> I get the output I want with all of these calls:
> print_items( list() )
> print_items( tuple() )
> print_items( set() )
> print_items( numpy.array([]) )
But sadly it fails on iterators:
print_items(xrange(0))
print_items(-x for x in [])
print_items({}.iteritems())
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