Ron Adam <ron3...@gmail.com> added the comment:
Thanks for the updated links Nick.
There is a comment in the docs that recommends putting parentheses around any
yield expression that returns a value. So it is in agreement with that in the
function argument case.
The grammar I used does keep it as a variant.
yield_expr 'yield' [testlist | yield_from]
yield_from 'from' test
The purpose of doing that is so I can do ...
yield_expr 'yield' [testlist | yield_from | yield_raise]
yield_from 'from' test
yield_raise 'raise' [test ['from' test]]
The yield_raise part is only an interesting exercise to help me understand
cpythons internals better. I'm getting there and hope to be able to contribute
to more bug fixes, and patches. :-)
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<http://bugs.python.org/issue11682>
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