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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/debug_shadow_class.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..82,
body: [
ClassDef(
StmtClassDef {
node_index: NodeIndex(None),
range: 0..20,
decorator_list: [],
name: Identifier {
id: Name("__debug__"),
range: 6..15,
node_index: NodeIndex(None),
},
type_params: None,
arguments: None,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 17..20,
value: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 17..20,
},
),
},
),
],
},
),
ClassDef(
StmtClassDef {
node_index: NodeIndex(None),
range: 35..58,
decorator_list: [],
name: Identifier {
id: Name("C"),
range: 41..42,
node_index: NodeIndex(None),
},
type_params: Some(
TypeParams {
range: 42..53,
node_index: NodeIndex(None),
type_params: [
TypeVar(
TypeParamTypeVar {
node_index: NodeIndex(None),
range: 43..52,
name: Identifier {
id: Name("__debug__"),
range: 43..52,
node_index: NodeIndex(None),
},
bound: None,
default: None,
},
),
],
},
),
arguments: None,
body: [
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 55..58,
value: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 55..58,
},
),
},
),
],
},
),
],
},
)
```
## Semantic Syntax Errors
|
1 | class __debug__: ... # class name
| ^^^^^^^^^ Syntax Error: cannot assign to `__debug__`
2 | class C[__debug__]: ... # type parameter name
|
|
1 | class __debug__: ... # class name
2 | class C[__debug__]: ... # type parameter name
| ^^^^^^^^^ Syntax Error: cannot assign to `__debug__`
|