[issue16546] ast.YieldFrom needlessly has its expr value as optional

[Brett Cannon]

Brett Cannon added the comment:

Where is the doc issue? And it's a bit more than just a doc issue anyway as Python.asdl has the same issue and that is what is used to generate the code that represents the nodes.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16546>
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