cpython/Demo/scripts/primes.py

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#! /usr/bin/env python
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# Print prime numbers in a given range
def main():
import sys
min, max = 2, 0x7fffffff
if sys.argv[1:]:
min = int(eval(sys.argv[1]))
if sys.argv[2:]:
max = int(eval(sys.argv[2]))
primes(min, max)
def primes(min, max):
if 2 >= min: print 2
primes = [2]
i = 3
while i <= max:
for p in primes:
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if i%p == 0 or p*p > i: break
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if i%p <> 0:
primes.append(i)
if i >= min: print i
i = i+2
main()