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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/invalid/expressions/yield/named_expression.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..85,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 52..59,
value: Yield(
ExprYield {
node_index: NodeIndex(None),
range: 52..59,
value: Some(
Name(
ExprName {
node_index: NodeIndex(None),
range: 58..59,
id: Name("x"),
ctx: Load,
},
),
),
},
),
},
),
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 63..64,
value: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 63..64,
value: Int(
1,
),
},
),
},
),
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 66..84,
value: Yield(
ExprYield {
node_index: NodeIndex(None),
range: 66..84,
value: Some(
Tuple(
ExprTuple {
node_index: NodeIndex(None),
range: 72..84,
elts: [
NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 72..73,
value: Int(
1,
),
},
),
Name(
ExprName {
node_index: NodeIndex(None),
range: 75..76,
id: Name("x"),
ctx: Load,
},
),
NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 80..81,
value: Int(
2,
),
},
),
NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 83..84,
value: Int(
3,
),
},
),
],
ctx: Load,
parenthesized: false,
},
),
),
},
),
},
),
],
},
)
```
## Errors
|
1 | # Unparenthesized named expressions are not allowed
2 | yield x := 1
| ^^ Syntax Error: Expected a statement
3 |
4 | yield 1, x := 2, 3
|
|
2 | yield x := 1
3 |
4 | yield 1, x := 2, 3
| ^^ Syntax Error: Expected `,`, found `:=`
|