python-gevent/examples/processes.py

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Python
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#!/usr/bin/env python
from __future__ import print_function
import gevent
from gevent import subprocess
import sys
if sys.platform.startswith('win'):
UNAME = ['cmd.exe', '/C', 'ver']
LS = ['dir.exe']
else:
UNAME = ['uname']
LS = ['ls']
# run 2 jobs in parallel
p1 = subprocess.Popen(UNAME, stdout=subprocess.PIPE)
p2 = subprocess.Popen(LS, stdout=subprocess.PIPE)
gevent.wait([p1, p2], timeout=2)
# print the results (if available)
if p1.poll() is not None:
print('uname: %r' % p1.stdout.read())
else:
print('uname: job is still running')
if p2.poll() is not None:
print('ls: %r' % p2.stdout.read())
else:
print('ls: job is still running')
p1.stdout.close()
p2.stdout.close()