Trait pyo3::callback::PyCallbackOutput

pub trait PyCallbackOutput: Copy {
    const ERR_VALUE: Self;
}

A type which can be the return type of a python C-API callback

Required Associated Constants

const ERR_VALUE: Self

The error value to return to python if the callback raised an exception

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl PyCallbackOutput for *mut PyObject

const ERR_VALUE: Self = {0x0 as *mut pyo3_ffi::PyObject}

impl PyCallbackOutput for c_int

const ERR_VALUE: Self = -1i32

Implementors

impl PyCallbackOutput for Py_ssize_t

const ERR_VALUE: Self = -1isize