use libc::{c_char, c_int};
use pyport::Py_ssize_t;
use object::PyObject;
extern "C" {
pub fn PyErr_WarnEx(category: *mut PyObject,
message: *const c_char,
stack_level: Py_ssize_t) -> c_int;
pub fn PyErr_WarnFormat(category: *mut PyObject, stack_level: Py_ssize_t,
format: *const c_char, ...)
-> c_int;
pub fn PyErr_WarnExplicit(category: *mut PyObject,
message: *const c_char,
filename: *const c_char,
lineno: c_int,
module: *const c_char,
registry: *mut PyObject) -> c_int;
}