range() and xrange() limits

gistfile1.py

>>> import sys
>>> xrange(sys.maxint)
xrange(9223372036854775807)
>>> xrange(sys.maxint+1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: Python int too large to convert to C long

>>> range(sys.maxint+1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OverflowError: range() result has too many items

>>> range(sys.maxint)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
MemoryError

>>> range(sys.maxint-1, sys.maxint+1)
[9223372036854775806L, 9223372036854775807L]