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diff python/prime.py @ 253:8593b0384d3e

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add a function for computing primes
author Jeff Hammel <jhammel@mozilla.com>
date Mon, 10 Dec 2012 11:08:21 -0800
parents 05728a85e19b
children b5a59c3e4421
line wrap: on
line diff
--- a/python/prime.py	Thu Dec 06 15:16:39 2012 -0800
+++ b/python/prime.py	Mon Dec 10 11:08:21 2012 -0800
@@ -7,6 +7,12 @@
             return False
     return True
 
+def primes(n):
+    return [i for i in range(2,n)
+            if not [True for j in range(2,1 + i/2)
+                    if not i%j]]
+
+
 if __name__ == '__main__':
     import sys
     for arg in sys.argv[1:]: