Support for Python3_13

[BakedSnake]

Add support for python3_13

Remove long types:

Error compiling Cython file:
------------------------------------------------------------
...
        # bool is a subclass of int, so check those first
        if value is True:
            lo_message_add_true(self._message)
        elif value is False:
            lo_message_add_false(self._message)
        elif isinstance(value, (int, long)):
                                     ^
------------------------------------------------------------
src/liblo.pyx:1001:37: undeclared name not builtin: long

Add noexcept on callbacks:

Error compiling Cython file:
------------------------------------------------------------
...
                    user_data=user_data,
                    nargs=nargs)
        # keep a reference to the callback data around
        self._keep_refs.append(cb)

        lo_server_add_method(self._server, p, t, _msg_callback, <void*>cb)
                                                 ^
------------------------------------------------------------
src/liblo.pyx:484:49: Cannot assign type 'int (const_char *, const_char *, lo_arg **, int, lo_message, void *) except? -1 nogil' to 'lo_method_handler' (alias of 'int (*)(const_char *, const_char *, lo_arg **, int, lo_message, void *) noexcept'). Exception values are incompatible. Suggest adding 'noexcept' to the type of '_msg_callback'.

Cast argv[i] to lo_blob:

/usr/lib/python3.13/site-packages/setuptools/_distutils/dist.py:287: UserWarning: Unknown distribution option: 'test_suite'
  warnings.warn(msg)
running build
running build_ext
Compiling src/liblo.pyx because it changed.
[1/1] Cythonizing src/liblo.pyx
building 'liblo' extension
creating build/temp.linux-x86_64-cpython-313/src
x86_64-pc-linux-gnu-gcc -fno-strict-overflow -Wsign-compare -DNDEBUG -fPIC -I/usr/include/python3.13 -c src/liblo.c -o build/temp.linux-x86_64-cpython-313/src/liblo.o -fno-strict-aliasing -Werror-implicit-function-declaration -Wfatal-errors
src/liblo.c: In function ‘__pyx_f_5liblo__msg_callback’:
src/liblo.c:6646:94: error: passing argument 1 of ‘lo_blob_dataptr’ from incompatible pointer type [-Wincompatible-pointer-types]
 6646 |         __pyx_t_5 = __Pyx_PyBytes_FromCString(((unsigned char *)lo_blob_dataptr((__pyx_v_argv[__pyx_v_i])))); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 235, __pyx_L1_error)
      |                                                                                 ~~~~~~~~~~~~~^~~~~~~~~~~~
      |                                                                                              |
      |                                                                                              lo_arg *
src/liblo.c:1361:78: note: in definition of macro ‘__Pyx_PyBytes_FromCString’
 1361 | #define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
      |                                                                              ^
compilation terminated due to -Wfatal-errors.
error: command '/usr/bin/x86_64-pc-linux-gnu-gcc' failed with exit code 1

References

• pyliblo incompatible with python 3.11 #29
• Issue with Python 3.13 #30
• Explictly specify type #31