source: python/trunk/Demo/scripts/primes.py@ 6

Last change on this file since 6 was 2, checked in by Yuri Dario, 15 years ago

Initial import for vendor code.

  • Property svn:eol-style set to native
File size: 565 bytes
Line 
1#! /usr/bin/env python
2
3# Print prime numbers in a given range
4
5def main():
6 import sys
7 min, max = 2, 0x7fffffff
8 if sys.argv[1:]:
9 min = int(eval(sys.argv[1]))
10 if sys.argv[2:]:
11 max = int(eval(sys.argv[2]))
12 primes(min, max)
13
14def primes(min, max):
15 if 2 >= min: print 2
16 primes = [2]
17 i = 3
18 while i <= max:
19 for p in primes:
20 if i%p == 0 or p*p > i: break
21 if i%p <> 0:
22 primes.append(i)
23 if i >= min: print i
24 i = i+2
25
26if __name__ == "__main__":
27 main()
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