Python mypy errors when record member names match type names

[mhammond]

pub struct Record {
    bool: bool, // sad mypy
}

cargo test -p uniffi-fixture-keywords-rust works, but:

% mypy target/tmp/uniffi_keywords_rust-xxx/keywords_rust.py
.../keywords_rust.py:1161: error: Variable "keywords_rust.RecordWithTypeNames.bool" is not valid as a type  [valid-type]

This just demonstrates the error but makes no attempt to fix it yet.

[mhammond]

"Rust and Foreign Language tests" are failing with the mypy errors.

[mhammond]

This isn't just builtins:

class foo: # unlikely, but looking at the general case...
    pass

class Test:
    bool: bool
    int: int
    foo: foo
    def __init__(self, bool: bool, foo: foo):
        pass

t = Test(True, foo())

mypy complains:

/tmp/t.py:8: error: Variable "t.Test.bool" is not valid as a type  [valid-type]
/tmp/t.py:8: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
/tmp/t.py:8: error: Variable "t.Test.foo" is not valid as a type  [valid-type]

(not clear why int isn't also an error)

So my initial naive idea of just special-casing builtin types and using a fully-qualified name from the builtins module isn't going to work in general (although may actually be fine in practice?) I can't see this addressed in the mypy docs.