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Guido van Rossum 1991-06-04 20:36:54 +00:00
parent 0481447f41
commit ec758ead39
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Demo/scripts/primes.py Executable file
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#! /usr/local/python
# 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:
if i%p = 0 or p*p > i: break
if i%p <> 0:
primes.append(i)
if i >= min: print i
i = i+2
main()