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# Testing select module
def test():
import select
import os
cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do date; sleep 3; done'
p = os.popen(cmd, 'r')
for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
print 'timeout =', tout
rfd, wfd, xfd = select.select([p], [], [], tout)
print rfd, wfd, xfd
if (rfd, wfd, xfd) == ([], [], []):
continue
if (rfd, wfd, xfd) == ([p], [], []):
line = p.readline()
print `line`
if not line:
print 'EOF'
break
continue
print 'Heh?'
test()
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