On Sep 5, 11:18 am, [EMAIL PROTECTED] wrote: > Helmut Jarausch: > > > I need to hash arrays of integers (from the hash module). > > One of the possible solutions is to hash the equivalent tuple, but it > requires some memory (your sequence must not be tuples already):
why can't it be tuple already? Doesn't matter: >>> from numpy import arange >>> a=arange(5) >>> a array([0, 1, 2, 3, 4]) >>> hash(a) Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: unhashable type >>> b=tuple(a) >>> b (0, 1, 2, 3, 4) >>> c=tuple(b) >>> c (0, 1, 2, 3, 4) >>> hash(c) 1286958229 you can discard the tuple, so the memory requirement is transient. -- http://mail.python.org/mailman/listinfo/python-list
