Python 3 + uwsgi RPC slighty broken

[squeaky-pl]

There is a small problem with Python 3 and uwsgi RPC, all the functions expect bytestrings (including the names used to identify them) but uwsgi.register_rpc expects unicode since it uses s which means Unicode on Python 3.

--- a/plugins/python/uwsgi_pymodule.c
+++ b/plugins/python/uwsgi_pymodule.c
@@ -428,7 +428,7 @@ PyObject *py_uwsgi_register_rpc(PyObject * self, PyObject * args) {
        char *name;
        PyObject *func;

-       if (!PyArg_ParseTuple(args, "sO|B:register_rpc", &name, &func, &argc)) {
+       if (!PyArg_ParseTuple(args, "yO|B:register_rpc", &name, &func, &argc)) {
                return NULL;
        }

Now you can run this example without type errors:

import uwsgi

def hello_world(person):
    return 'Hello {}'.format(person).encode('utf-8')

print(uwsgi.register_rpc(b"hello", hello_world))


print(uwsgi.rpc(None, b"hello", b"Katy"))
print(uwsgi.call(b"hello", b"Jenny"))


def application(environ, start_response):
    start_response('200 OK', [('Content-Type', 'text/plain')])

    print(uwsgi.rpc(None, b"hello", b"world"))
    print(uwsgi.call(b"hello", b"Sam"))

    return [b'Hello']

[squeaky-pl]

Also the docs would benefit from using b prefix in the RPC examples

[unbit]

You can use

#ifdef PYTHREE
...
#else
...
#endif

to distinguished between the two cases (its ok to accept it as a pull request)

If you make a pull request for uwsgi-docs i will accept it too for sure. Thanks a lot