Method error_scope

include/pybind11/detail/common.h:1216–1216

struct error_scope {
    PyObject *type, *value, *trace;
    error_scope() { PyErr_Fetch(&type, &value, &trace); }
    error_scope(const error_scope &) = delete;
    error_scope &operator=(const error_scope &) = delete;
    ~error_scope() { PyErr_Restore(type, value, trace); }