use pyo3::prelude::*; use pyo3::types::PyDict; use std::isize; #[macro_use] mod common; #[pyclass] struct BaseClass { #[pyo3(get)] val1: usize, } #[pyclass(subclass)] struct SubclassAble {} #[test] fn subclass() { let gil = Python::acquire_gil(); let py = gil.python(); let d = PyDict::new(py); d.set_item("SubclassAble", py.get_type::()) .unwrap(); py.run( "class A(SubclassAble): pass\nassert issubclass(A, SubclassAble)", None, Some(d), ) .map_err(|e| e.print(py)) .unwrap(); } #[pymethods] impl BaseClass { #[new] fn new(obj: &PyRawObject) { obj.init(BaseClass { val1: 10 }) } } #[pyclass(extends=BaseClass)] struct SubClass { #[pyo3(get)] val2: usize, } #[pymethods] impl SubClass { #[new] fn new(obj: &PyRawObject) { obj.init(SubClass { val2: 5 }); BaseClass::new(obj); } } #[test] fn inheritance_with_new_methods() { let gil = Python::acquire_gil(); let py = gil.python(); let _typebase = py.get_type::(); let typeobj = py.get_type::(); let inst = typeobj.call((), None).unwrap(); py_run!(py, inst, "assert inst.val1 == 10; assert inst.val2 == 5"); }