From 458120dd40db6b4df55a4e96b650e16798ef06a0 Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Tue, 3 May 2011 11:25:13 +0000 Subject: add hg and python --- sys/src/cmd/python/Demo/scripts/primes.py | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 sys/src/cmd/python/Demo/scripts/primes.py (limited to 'sys/src/cmd/python/Demo/scripts/primes.py') diff --git a/sys/src/cmd/python/Demo/scripts/primes.py b/sys/src/cmd/python/Demo/scripts/primes.py new file mode 100755 index 000000000..5935a3c84 --- /dev/null +++ b/sys/src/cmd/python/Demo/scripts/primes.py @@ -0,0 +1,27 @@ +#! /usr/bin/env 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 + +if __name__ == "__main__": + main() -- cgit v1.2.3