[issue3139] bytearrays are not thread safe

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

Amaury, I think the issue of thread-safety of the io library should be
decoupled from this issue. I don't think it is release-critical that the
io library is thread-safe (and even if it is release-critical, the
problem should be tracked in a different issue, as it requires a
completely independent patch).

The original issue (bytearrays are not thread-safe) will not be
completely resolved (for a certain definition of "thread-safe"): it will
always be possible that one thread observes a locked byte object - this
is by design of the buffer interface, and it is a good design.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3139>
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