File: sigchild_ignore.py

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import signal, subprocess, sys
# On Linux this causes os.waitpid to fail with OSError as the OS has already
# reaped our child process.  The wait() passing the OSError on to the caller
# and causing us to exit with an error is what we are testing against.
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
subprocess.Popen([sys.executable, '-c', 'print("albatross")']).wait()