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bpo-5001: More-informative multiprocessing error messages (#3079)

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* Make error message more informative

Replace assertions in error-reporting code with more-informative version that doesn't cause confusion over where and what the error is.

* Additional clarification + get travis to check

* Change from SystemError to TypeError

As suggested in PR comment by @pitrou, changing from SystemError; TypeError appears appropriate.

* NEWS file installation; ACKS addition (will do my best to justify it by additional work)

* Making current AssertionErrors in multiprocessing more informative

* Blurb added re multiprocessing managers.py, queues.py cleanup

* Further multiprocessing cleanup - went through pool.py

* Fix two asserts in multiprocessing/util.py

* Most asserts in multiprocessing more informative

* Didn't save right version

* Further work on multiprocessing error messages

* Correct typo

* Correct typo v2

* Blasted colon... serves me right for trying to work on two things at once

* Simplify NEWS entry

* Update 2017-08-18-17-16-38.bpo-5001.gwnthq.rst

* Update 2017-08-18-17-16-38.bpo-5001.gwnthq.rst

OK, never mind.

* Corrected (thanks to pitrou) error messages for notify

* Remove extraneous backslash in docstring.
This commit is contained in:
Allen W. Smith, Ph.D 2017-08-29 17:52:18 -05:00 • committed by Antoine Pitrou
parent 631fdee6e6
commit bd73e72b4a
15 changed files with 120 additions and 39 deletions
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2
Lib/multiprocessing/resource_sharer.py
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@ -125,7 +125,7 @@ class _ResourceSharer(object):
def _start(self):
from .connection import Listener
assert self._listener is None
assert self._listener is None, "Already have Listener"
util.debug('starting listener and thread for sending handles')
self._listener = Listener(authkey=process.current_process().authkey)
self._address = self._listener.address