cpython/Lib/test/subprocessdata/sigchild_ignore.py

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()
Issue #1731717: Fixed the problem where subprocess.wait() could cause an OSError exception when The OS had been told to ignore SIGCLD in our process or otherwise not wait for exiting child processes. 2010-12-14 14:38:00 +00:00			`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.`
SIGCHLD is a more portable name than SIGCLD. (OSX has no SIGCLD) 2010-12-14 18:18:49 +00:00			`signal.signal(signal.SIGCHLD, signal.SIG_IGN)`
Issue #1731717: Fixed the problem where subprocess.wait() could cause an OSError exception when The OS had been told to ignore SIGCLD in our process or otherwise not wait for exiting child processes. 2010-12-14 14:38:00 +00:00			`subprocess.Popen([sys.executable, '-c', 'print("albatross")']).wait()`