Positive integer from Python hash() function

Using sys.maxsize:

>>> import sys
>>> sys.maxsize
9223372036854775807L
>>> hash('asdf')
-618826466
>>> hash('asdf') % ((sys.maxsize + 1) * 2)
18446744073090725150L

Alternative using ctypes.c_size_t:

>>> import ctypes
>>> ctypes.c_size_t(hash('asdf')).value
18446744073090725150L