I'm using pp in a module called from a driver script, and although the work is completed, the process never exits. Control is returned to the calling script, and then it hangs. If I run the module from the command line, then it exits. I'm using python 2.6 in cygwin. I poked around, and found that the process will exit (after a several-second delay) when the command is run from a DOS shell. I found this code mentioned elsewhere on the forum, and then noticed that sys.platform is "cygwin", so it is trying to call os.kill. When I change the code to call taskkill instead, the process exits after calling taskkill a bunch of times. The calls to taskkill appear to be what is causing the delay.
Maybe I'm doing something wrong, but it seems that it should not be necessary for all of these calls to kill, that the workers should have already been cleaned up. It makes no difference whether I call ppserver.finalize() or not.
Here's the modified code, including a redirect of the output to silence the useless error messages:
for worker in self.__workers:
try:
if sys.platform.startswith("win") or sys.platform == "cygwin":
os.popen('TASKKILL /PID '+str(worker.pid)+' /F'+' 2>nul')
else:
os.kill(worker.pid, 9)
os.waitpid(worker.pid, 0)
worker.t.close()
except:
pass
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