8000 gh-100201: Document behavior with a bare yield statement by ramvikrams · Pull Request #100416 · python/cpython · GitHub
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merged 3 commits into from
Jan 1, 2023
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gh-100201: Document behavior with a bare yield statement #100416

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Update expressions.rst
ramvikrams Dec 21, 2022
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Update expressions.rst
ramvikrams Dec 21, 2022
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Update Doc/reference/expressions.rst
ramvikrams Jan 1, 2023
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7 changes: 4 additions & 3 deletions Doc/reference/expressions.rst
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Expand Up @@ -454,9 +454,10 @@ generator. That generator then controls the execution of the generator
function. The execution starts when one of the generator's methods is called.
At that time, the execution proceeds to the first yield expression, where it is
suspended again, returning the value of :token:`~python-grammar:expression_list`
to the generator's caller. By suspended, we mean that all local state is
retained, including the current bindings of local variables, the instruction
pointer, the internal evaluation stack, and the state of any exception handling.
to the generator's caller, but returns :const:`None` when the optional
:token:`~python-grammer:expression_list` is not passed. By suspended, we mean that
all local state is retained, including the current bindings of local variables, the
instruction pointer, the internal evaluation stack, and the state of any exception handling.
When the execution is resumed by calling one of the generator's methods, the
function can proceed exactly as if the yield expression were just another
external call. The value of the yield expression after resuming depends on the
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