Re: subprocess.Popen(): terminate() exception

2014-05-12 0:57 GMT+03:00 Michael Büsch <[email protected]>:
>
> I'm using latest jython hg sources (2.7).
> My code uses subprocess.Popen() and eventually calls terminate() on the object.
> This fails with the following exception:
>
>> Traceback (most recent call last):
>>   File "/home/mb/develop/git/awlsim/./tests/../awlsimcli", line 424, in <module>
>>     sys.exit(main())
>>   File "/home/mb/develop/git/awlsim/./tests/../awlsimcli", line 420, in main
>>     return runWithServerBackend(inputFile)
>>   File "/home/mb/develop/git/awlsim/./tests/../awlsimcli", line 274, in runWithServerBackend
>>     client.shutdown()
>>   File "/home/mb/develop/git/awlsim/awlsim/coreserver/client.py", line 115, in shutdown
>>     self.serverProcess.terminate()
>>   File "/home/mb/develop/hg/jython/dist/Lib/subprocess.py", line 1399, in terminate
>>     _subprocess.TerminateProcess(self._handle, 1)
>> NameError: global name '_subprocess' is not defined
>
> This looks like a bug in the subprocess module.

Neither 'terminate' nor 'kill' nor 'send_signal' are currently
supported by Jython, and I would assume that possible Popen
configuration parameters added in Python 2.6 or 2.7 aren't supported
either. I have understood that supporting everything CPython does is
problematic due to JVM limitations (e.g. signals aren't officially
supported), but it ought to be possible to implement at least 'kill'
by just terminating the started process via the Java API. With CPython
'terminate' sends SIGTERM signal on posix, so if signals aren't
supported implementing it that way is not possible. Implementing
'terminate' as an alias for 'kill', like CPython does on Windows,
ought to be a good enough workaround.

I would love to see at least 'kill' and 'terminate' included into
Jython 2.7. Anyone interested to work with me getting them
implemented?

Cheers,
    .peke
-- 
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