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Diffstat (limited to 'Doc/reference/expressions.rst')
| -rw-r--r-- | Doc/reference/expressions.rst | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 094b92841e..1cff8a52df 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -326,14 +326,16 @@ range(10) for y in bar(x))``. The parentheses can be omitted on calls with only one argument. See section :ref:`calls` for details. -Since Python 3.6, if the generator appears in an :keyword:`async def` function, -then :keyword:`async for` clauses and :keyword:`await` expressions are permitted -as with an asynchronous comprehension. If a generator expression -contains either :keyword:`async for` clauses or :keyword:`await` expressions -it is called an :dfn:`asynchronous generator expression`. -An asynchronous generator expression yields a new asynchronous -generator object, which is an asynchronous iterator -(see :ref:`async-iterators`). +If a generator expression contains either :keyword:`async for` +clauses or :keyword:`await` expressions it is called an +:dfn:`asynchronous generator expression`. An asynchronous generator +expression returns a new asynchronous generator object, +which is an asynchronous iterator (see :ref:`async-iterators`). + +.. versionchanged:: 3.7 + Prior to Python 3.7, asynchronous generator expressions could + only appear in :keyword:`async def` coroutines. Starting + with 3.7, any function can use asynchronous generator expressions. .. _yieldexpr: |