PyNumberMethods needed ifdefs for python3.x and some other corrections.

source/blender/python/generic/matrix.c

@@ -1012,6 +1012,46 @@ static PySequenceMethods Matrix_SeqMethods = {
 	(ssizeobjargproc) Matrix_ass_item,		/* sq_ass_item */
 	(ssizessizeobjargproc) Matrix_ass_slice,	/* sq_ass_slice */
 };
+
+
+#if (PY_VERSION_HEX >= 0x03000000)
+static PyNumberMethods Matrix_NumMethods = {
+		(binaryfunc)	Matrix_add,	/*nb_add*/
+		(binaryfunc)	Matrix_sub,	/*nb_subtract*/
+		(binaryfunc)	Matrix_mul,	/*nb_multiply*/
+		0,							/*nb_remainder*/
+		0,							/*nb_divmod*/
+		0,							/*nb_power*/
+		(unaryfunc) 	0,	/*nb_negative*/
+		(unaryfunc) 	0,	/*tp_positive*/
+		(unaryfunc) 	0,	/*tp_absolute*/
+		(inquiry)	0,	/*tp_bool*/
+		(unaryfunc)	Matrix_inv,	/*nb_invert*/
+		0,				/*nb_lshift*/
+		(binaryfunc)0,	/*nb_rshift*/
+		0,				/*nb_and*/
+		0,				/*nb_xor*/
+		0,				/*nb_or*/
+		0,				/*nb_int*/
+		0,				/*nb_reserved*/
+		0,				/*nb_float*/
+		0,				/* nb_inplace_add */
+		0,				/* nb_inplace_subtract */
+		0,				/* nb_inplace_multiply */
+		0,				/* nb_inplace_remainder */
+		0,				/* nb_inplace_power */
+		0,				/* nb_inplace_lshift */
+		0,				/* nb_inplace_rshift */
+		0,				/* nb_inplace_and */
+		0,				/* nb_inplace_xor */
+		0,				/* nb_inplace_or */
+		0,				/* nb_floor_divide */
+		0,				/* nb_true_divide */
+		0,				/* nb_inplace_floor_divide */
+		0,				/* nb_inplace_true_divide */
+		0,				/* nb_index */
+};
+#else
 static PyNumberMethods Matrix_NumMethods = {
 	(binaryfunc) Matrix_add,				/* __add__ */
 	(binaryfunc) Matrix_sub,				/* __sub__ */
@@ -1037,6 +1077,7 @@ static PyNumberMethods Matrix_NumMethods = {
 	(unaryfunc) 0,							/* __oct__ */
 	(unaryfunc) 0,							/* __hex__ */
 };
+#endif
 
 static PyObject *Matrix_getRowSize( MatrixObject * self, void *type )
 {