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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/invalid/expressions/compare/invalid_rhs_expression.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..34,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 0..20,
value: Compare(
ExprCompare {
node_index: NodeIndex(None),
range: 0..20,
left: Name(
ExprName {
node_index: NodeIndex(None),
range: 0..1,
id: Name("x"),
ctx: Load,
},
),
ops: [
NotIn,
],
comparators: [
Lambda(
ExprLambda {
node_index: NodeIndex(None),
range: 9..20,
parameters: Some(
Parameters {
range: 16..17,
node_index: NodeIndex(None),
posonlyargs: [],
args: [
ParameterWithDefault {
range: 16..17,
node_index: NodeIndex(None),
parameter: Parameter {
range: 16..17,
node_index: NodeIndex(None),
name: Identifier {
id: Name("y"),
range: 16..17,
node_index: NodeIndex(None),
},
annotation: None,
},
default: None,
},
],
vararg: None,
kwonlyargs: [],
kwarg: None,
},
),
body: Name(
ExprName {
node_index: NodeIndex(None),
range: 19..20,
id: Name("y"),
ctx: Load,
},
),
},
),
],
},
),
},
),
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 22..34,
value: Compare(
ExprCompare {
node_index: NodeIndex(None),
range: 22..34,
left: Name(
ExprName {
node_index: NodeIndex(None),
range: 22..23,
id: Name("x"),
ctx: Load,
},
),
ops: [
Eq,
],
comparators: [
Yield(
ExprYield {
node_index: NodeIndex(None),
range: 27..34,
value: Some(
Name(
ExprName {
node_index: NodeIndex(None),
range: 33..34,
id: Name("y"),
ctx: Load,
},
),
),
},
),
],
},
),
},
),
],
},
)
```
## Errors
|
1 | x not in lambda y: y
| ^^^^^^^^^^^ Syntax Error: Lambda expression cannot be used here
2 |
3 | x == yield y
|
|
1 | x not in lambda y: y
2 |
3 | x == yield y
| ^^^^^^^ Syntax Error: Yield expression cannot be used here
|