Eryk Sun added the comment:
To diagnose the access violation, it may help if you install the debug binaries
and try to reproduce the crash using python_d.exe. Attach the dump file to this
issue.
Regarding the multiprocessing question, if its a separate issue you need to
file it on its own and nosy davin. At first glance, I don't see why the handle
is None in the lock's __exit__ method. After you acquire the lock, try logging
the connection information. For example:
import multiprocessing as mp
import multiprocessing.util
def test(lock):
with lock:
mp.util.info('test:lock:token: %r' % (lock._token,))
mp.util.info('test:lock:handle: %r' %
(lock._tls.connection._handle,))
if __name__ == '__main__':
mp.util.log_to_stderr(mp.util.INFO)
lock = mp.Manager().Lock()
p = mp.Process(target=test, args=(lock,))
p.start()
p.join()
----------
nosy: +eryksun
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