how to test for atomicity/mutability/hashability?
Chris Rebert
clp2 at rebertia.com
Thu Oct 7 16:02:42 EDT 2010
On Thu, Oct 7, 2010 at 12:13 PM, kj <no.email at please.post> wrote:
<snip>
> It would facilitate the implementation of t() to have a simple test
> for mutability. Is there one?
Non-default hashability is an approximate heuristic:
def is_immutable(x):
try:
hash(x)
except TypeError:
return False
else:
klass = type(x)
return klass is object or klass.__hash__ is not object.__hash__
Cheers,
Chris
--
http://blog.rebertia.com
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