forward-annotation-syntax-error (F722)

target-version = "py312"

[lint]
select = ["F722"]

Parse errors

Quoted annotations must parse as Python expressions.

# error: [forward-annotation-syntax-error] "Expected an expression"
invalid: "/"

Semantic syntax errors

An expression can parse successfully but still contain a semantic syntax error.

# error: [forward-annotation-syntax-error] "Duplicate parameter"
invalid: "(lambda x, x: 0)"

Semantic syntax errors currently mapped to disabled lint rules

F722 reports semantic syntax errors even when their overlapping lint rules are disabled, in this case yield-outside-function (F704).

# error: [forward-annotation-syntax-error] "`yield` statement outside of a function"
invalid: "(yield 1)"

Semantic syntax errors currently mapped to enabled lint rules

Disabling F722 suppresses the semantic syntax error even when F704 remains enabled.

target-version = "py312"

[lint]
select = ["F704"]

invalid: "(yield 1)"