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| author |   Ivan Levkivskyi <levkivskyi@gmail.com> | 2019-06-03 00:41:00 +0100 |
|---|---|---|
| committer |   GitHub <noreply@github.com> | 2019-06-03 00:41:00 +0100 |
| commit | 82eac26a73107ded733110cf11e59e95f41c197e (patch) | |
| tree | 171082e30fb494878af4443907fa7b3799c49460 /Doc/reference | |
| parent | bpo-37100: Fix test_coroutines with -Werror (GH-13756) (diff) | |
| download | cpython-82eac26a73107ded733110cf11e59e95f41c197e.tar.gz cpython-82eac26a73107ded733110cf11e59e95f41c197e.tar.bz2 cpython-82eac26a73107ded733110cf11e59e95f41c197e.zip | |
Update the annotated assignment docs (GH-13757)
Diffstat (limited to 'Doc/reference')
| -rw-r--r-- | Doc/reference/simple_stmts.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst index af7c0caff62..9c0430da1fb 100644 --- a/Doc/reference/simple_stmts.rst +++ b/Doc/reference/simple_stmts.rst @@ -329,7 +329,8 @@ Annotated assignment statements statement, of a variable or attribute annotation and an optional assignment statement: .. productionlist:: - annotated_assignment_stmt: `augtarget` ":" `expression` ["=" `expression`] + annotated_assignment_stmt: `augtarget` ":" `expression` + : ["=" (`expression_list` | `yield_expression`)] The difference from normal :ref:`assignment` is that only single target and only single right hand side value is allowed. @@ -366,6 +367,11 @@ target, then the interpreter evaluates the target except for the last syntax for type annotations that can be used in static analysis tools and IDEs. +.. versionchanged:: 3.8 + Now annotated assignments allow same expressions in the right hand side as + the augmented assignments. Previously, some expressions (like un-parenthesized + tuple expressions) caused a syntax error. + .. _assert: |