你可以试试看。与范围相同的语义：
import operator
def lrange(num1, num2 = None, step = 1):
op = operator.__lt__
if num2 is None:
num1, num2 = 0, num1
if num2 < num1:
if step > 0:
num1 = num2
op = operator.__gt__
elif step < 0:
num1 = num2
while op(num1, num2):
yield num1
num1 += step
>>> list(lrange(138264128374162347812634134, 138264128374162347812634140))
[138264128374162347812634134L, 138264128374162347812634135L, 138264128374162347812634136L, 138264128374162347812634137L, 138264128374162347812634138L, 138264128374162347812634139L]
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