On Fri, May 6, 2011 at 4:21 PM, Philip Semanchuk <phi...@semanchuk.com> 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()) -- http://mail.python.org/mailman/listinfo/python-list