[issue37652] Multiprocessing shared_memory ValueError on race with ShareableList

[Ben]

Ben <benjsimner at gmail.com> added the comment:

It would be nice to get davin to clarify the API for this module.

What are the use cases for SharedMemory and ShareableList? 
Are you supposed to ever use a raw SharedMemory buffer directly?
What atomicity guarantees are there for ShareableList operations and read/write to the SharedMemory buffer?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37652>
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