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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/t_string_lambda_without_parentheses.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..61,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 44..60,
value: TString(
ExprTString {
node_index: NodeIndex(None),
range: 44..60,
value: TStringValue {
inner: Single(
TString {
range: 44..60,
node_index: NodeIndex(None),
elements: [
Interpolation(
InterpolatedElement {
range: 46..56,
node_index: NodeIndex(None),
expression: Lambda(
ExprLambda {
node_index: NodeIndex(None),
range: 47..56,
parameters: Some(
Parameters {
range: 54..55,
node_index: NodeIndex(None),
posonlyargs: [],
args: [
ParameterWithDefault {
range: 54..55,
node_index: NodeIndex(None),
parameter: Parameter {
range: 54..55,
node_index: NodeIndex(None),
name: Identifier {
id: Name("x"),
range: 54..55,
node_index: NodeIndex(None),
},
annotation: None,
},
default: None,
},
],
vararg: None,
kwonlyargs: [],
kwarg: None,
},
),
body: Name(
ExprName {
node_index: NodeIndex(None),
range: 56..56,
id: Name(""),
ctx: Invalid,
},
),
},
),
debug_text: None,
conversion: None,
format_spec: None,
},
),
Literal(
InterpolatedStringLiteralElement {
range: 56..58,
node_index: NodeIndex(None),
value: " x",
},
),
],
flags: TStringFlags {
quote_style: Double,
prefix: Regular,
triple_quoted: false,
unclosed: false,
},
},
),
},
},
),
},
),
],
},
)
```
## Errors
|
1 | # parse_options: {"target-version": "3.14"}
2 | t"{lambda x: x}"
| ^^ Syntax Error: Expected an expression
|
|
1 | # parse_options: {"target-version": "3.14"}
2 | t"{lambda x: x}"
| ^^^^^^^^^ Syntax Error: t-string: lambda expressions are not allowed without parentheses
|
|
1 | # parse_options: {"target-version": "3.14"}
2 | t"{lambda x: x}"
| ^^ Syntax Error: t-string: expecting `}`
|
|
1 | # parse_options: {"target-version": "3.14"}
2 | t"{lambda x: x}"
| ^ Syntax Error: Expected an element of or the end of the t-string
|