diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/reference/expressions.rst | 4 | ||||
| -rw-r--r-- | Doc/whatsnew/3.9.rst | 4 |
2 files changed, 5 insertions, 3 deletions
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 17705b1..4b4c20b 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -185,7 +185,7 @@ Common syntax elements for comprehensions are: comprehension: `assignment_expression` `comp_for` comp_for: ["async"] "for" `target_list` "in" `or_test` [`comp_iter`] comp_iter: `comp_for` | `comp_if` - comp_if: "if" `expression_nocond` [`comp_iter`] + comp_if: "if" `or_test` [`comp_iter`] The comprehension consists of a single expression followed by at least one :keyword:`!for` clause and zero or more :keyword:`!for` or :keyword:`!if` clauses. @@ -1707,7 +1707,6 @@ Conditional expressions .. productionlist:: python-grammar conditional_expression: `or_test` ["if" `or_test` "else" `expression`] expression: `conditional_expression` | `lambda_expr` - expression_nocond: `or_test` | `lambda_expr_nocond` Conditional expressions (sometimes called a "ternary operator") have the lowest priority of all Python operations. @@ -1733,7 +1732,6 @@ Lambdas .. productionlist:: python-grammar lambda_expr: "lambda" [`parameter_list`] ":" `expression` - lambda_expr_nocond: "lambda" [`parameter_list`] ":" `expression_nocond` Lambda expressions (sometimes called lambda forms) are used to create anonymous functions. The expression ``lambda parameters: expression`` yields a function diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst index 3086930..24c72ee 100644 --- a/Doc/whatsnew/3.9.rst +++ b/Doc/whatsnew/3.9.rst @@ -267,6 +267,10 @@ Other Language Changes :func:`~operator.countOf` of the :mod:`operator` module. (Contributed by Serhiy Storchaka in :issue:`40824`.) +* Unparenthesized lambda expressions can no longer be the expression part in an + ``if`` clause in comprehensions and generator expressions. See :issue:`41848` + and :issue:`43755` for details. + New Modules =========== |