On Linux I get a "close failed: [Errno 10] No child processes" msg for each fork. But only if I have a pipe open. I don't understand the connection between the popen and the forks. Am I doing something wrong?
#! /usr/bin/env python
import os
import sys
import time
p = os.popen('top -b -d1')
n = 3
t1 = time.time()
for i in range(n):
pid = os.fork()
if pid == 0:
sys.exit(0)
delay = time.time() - t1
print 'rate: %.1f fork/sec' % (n/delay)
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