cool-RR wrote: > My function gets an iterable of an unknown type. I want to check whether > it's ordered. I could check whether it's a `set` or `frozenset`, which > would cover many cases, but I wonder if I can do better. Is there a nicer > way to check whether an iterable is ordered or not?
See the collections.abc module: https://docs.python.org/3/library/collections.abc.html I think what you want is: import collections.abc isinstance(it, collections.abc.Sequence) Prior to 3.3, you would use: # Untested. import collections isinstance(it, collections.Sequence) -- Steven -- https://mail.python.org/mailman/listinfo/python-list
