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| -rw-r--r-- | Doc/library/ast.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst index f95ee1d..b8688ae 100644 --- a/Doc/library/ast.rst +++ b/Doc/library/ast.rst @@ -1503,6 +1503,13 @@ Async and await fields as :class:`For` and :class:`With`, respectively. Only valid in the body of an :class:`AsyncFunctionDef`. +.. note:: + When a string is parsed by :func:`ast.parse`, operator nodes (subclasses + of :class:`ast.operator`, :class:`ast.unaryop`, :class:`ast.cmpop`, + :class:`ast.boolop` and :class:`ast.expr_context`) on the returned tree + will be singletons. Changes to one will be reflected in all other + occurrences of the same value (e.g. :class:`ast.Add`). + :mod:`ast` Helpers ------------------ |