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---
source: crates/ruff_python_parser/tests/fixtures.rs
input_file: crates/ruff_python_parser/resources/inline/err/assignment_instead_of_comparison.py
---
## AST
```
Module(
ModModule {
node_index: NodeIndex(None),
range: 0..62,
body: [
If(
StmtIf {
node_index: NodeIndex(None),
range: 0..4,
test: Name(
ExprName {
node_index: NodeIndex(None),
range: 3..4,
id: Name("x"),
ctx: Load,
},
),
body: [],
elif_else_clauses: [],
runtime_body: None,
},
),
AnnAssign(
StmtAnnAssign {
node_index: NodeIndex(None),
range: 7..13,
target: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 7..8,
value: Int(
3,
),
},
),
annotation: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 10..13,
},
),
value: None,
simple: false,
runtime_simple: None,
},
),
While(
StmtWhile {
node_index: NodeIndex(None),
range: 14..23,
test: Attribute(
ExprAttribute {
node_index: NodeIndex(None),
range: 20..23,
value: Name(
ExprName {
node_index: NodeIndex(None),
range: 20..21,
id: Name("x"),
ctx: Load,
},
),
attr: Identifier {
id: Name("a"),
range: 22..23,
node_index: NodeIndex(None),
},
ctx: Load,
},
),
body: [],
orelse: [],
runtime_body: None,
runtime_orelse: None,
},
),
AnnAssign(
StmtAnnAssign {
node_index: NodeIndex(None),
range: 26..32,
target: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 26..27,
value: Int(
3,
),
},
),
annotation: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 29..32,
},
),
value: None,
simple: false,
runtime_simple: None,
},
),
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 33..43,
value: List(
ExprList {
node_index: NodeIndex(None),
range: 33..43,
elts: [
Name(
ExprName {
node_index: NodeIndex(None),
range: 34..35,
id: Name("x"),
ctx: Load,
},
),
Name(
ExprName {
node_index: NodeIndex(None),
range: 37..38,
id: Name("y"),
ctx: Load,
},
),
NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 41..42,
value: Int(
1,
),
},
),
],
ctx: Load,
runtime_elts: None,
},
),
},
),
If(
StmtIf {
node_index: NodeIndex(None),
range: 44..48,
test: Name(
ExprName {
node_index: NodeIndex(None),
range: 47..48,
id: Name("x"),
ctx: Load,
},
),
body: [],
elif_else_clauses: [],
runtime_body: None,
},
),
Assign(
StmtAssign {
node_index: NodeIndex(None),
range: 51..56,
targets: [
NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 51..52,
value: Int(
3,
),
},
),
],
value: NumberLiteral(
ExprNumberLiteral {
node_index: NodeIndex(None),
range: 55..56,
value: Int(
4,
),
},
),
runtime_targets: None,
runtime_type_comment: None,
runtime_type_comment_bytes: None,
},
),
Expr(
StmtExpr {
node_index: NodeIndex(None),
range: 58..61,
value: EllipsisLiteral(
ExprEllipsisLiteral {
node_index: NodeIndex(None),
range: 58..61,
},
),
},
),
],
runtime_body: None,
},
)
```
## Errors
|
1 | if x = 3: ...
| ^^^^^ Syntax Error: invalid syntax. Maybe you meant '==' or ':=' instead of '='?
2 | while x.a = 3: ...
3 | [x, y = 1]
|
|
1 | if x = 3: ...
| ^ Syntax Error: invalid syntax
2 | while x.a = 3: ...
3 | [x, y = 1]
|
|
1 | if x = 3: ...
| ^ Syntax Error: illegal target for annotation
2 | while x.a = 3: ...
3 | [x, y = 1]
|
|
1 | if x = 3: ...
2 | while x.a = 3: ...
| ^^^ Syntax Error: cannot assign to attribute here. Maybe you meant '==' instead of '='?
3 | [x, y = 1]
4 | if x = 3 = 4: ...
|
|
1 | if x = 3: ...
2 | while x.a = 3: ...
| ^ Syntax Error: invalid syntax
3 | [x, y = 1]
4 | if x = 3 = 4: ...
|
|
1 | if x = 3: ...
2 | while x.a = 3: ...
| ^ Syntax Error: illegal target for annotation
3 | [x, y = 1]
4 | if x = 3 = 4: ...
|
|
1 | if x = 3: ...
2 | while x.a = 3: ...
3 | [x, y = 1]
| ^^^^^ Syntax Error: invalid syntax. Maybe you meant '==' or ':=' instead of '='?
4 | if x = 3 = 4: ...
|
|
1 | if x = 3: ...
2 | while x.a = 3: ...
3 | [x, y = 1]
| ^ Syntax Error: invalid syntax
4 | if x = 3 = 4: ...
|
|
2 | while x.a = 3: ...
3 | [x, y = 1]
4 | if x = 3 = 4: ...
| ^ Syntax Error: invalid syntax
|
2 | while x.a = 3: ...
3 | [x, y = 1]
4 | if x = 3 = 4: ...
| ^ Syntax Error: cannot assign to literal here. Maybe you meant '==' instead of '='?
|
2 | while x.a = 3: ...
3 | [x, y = 1]
4 | if x = 3 = 4: ...
| ^ Syntax Error: invalid syntax