error: enums can't be inherited by other classes
 --> tests/ui/invalid_pyclass_enum.rs:3:11
  |
3 | #[pyclass(subclass)]
  |           ^^^^^^^^

error: enums can't extend from other classes
 --> tests/ui/invalid_pyclass_enum.rs:9:11
  |
9 | #[pyclass(extends = PyList)]
  |           ^^^^^^^

error: #[pyclass] can't be used on enums without any variants
  --> tests/ui/invalid_pyclass_enum.rs:16:18
   |
16 | enum NoEmptyEnum {}
   |                  ^^