[issue20951] SSLSocket.send() returns 0 for non-blocking socket

[Nikolaus Rath]

Nikolaus Rath added the comment:

Since this behavior cannot be changed without breaking third-party libraries (why did they work around this rather than reporting a bug?), I'd suggest to document the current behavior and allow programs to opt-in to getting exceptions.

I've attached a patch to that end. Feedback would be appreciated.

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Added file: http://bugs.python.org/file34504/issue20951.diff

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