[Tutor] Is there a test for hashability?

[James Reynolds]

On Thu, Sep 1, 2011 at 11:37 AM, Hugo Arts <hugo.yoshi at gmail.com> wrote:

> On Thu, Sep 1, 2011 at 5:28 PM, Richard D. Moores <rdmoores at gmail.com>
> wrote:
> > Thanks, James, from your ideas I've come up with this function as a
> > general test for hashibility of any object:
> >
> > def is_hashable(object):
> >    try:
> >        if hash(object):
> >            return True
> >    except TypeError:
> >        return False
> >
> > But is it?  It returns True for ints, floats, sets, tuples, strings,
> > functions; and False for lists
> >
> > Dick
>
> Are you sure? In my testing it returns False for sets, but True for
> frozensets as it should.
>

I agree with hugo, I just tested with all of these:

a = 'a'
b = []
c = 1
d = ()
e = set()
f = frozenset()

it gave the correct response for each

a = 'a' - True
b = [] - False
c = 1 - True
d = () - True
e = set() - False
f = frozenset() - True
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