How to test if object is sequence, or iterable?

[Terry Reedy]

"Tim N. van der Leeuw" <tim.leeuwvander at nl.unisys.com> wrote in message 
news:1153587482.812348.320630 at h48g2000cwc.googlegroups.com...
> Hi,
>
> I'd like to know if there's a way to check if an object is a sequence,
> or an iterable. Something like issequence() or isiterable().

How about
try: it = iter(possible_iterable)
except TypeError: bail()

Terry Jan Reedy