init python support

demos/python/Person.py

@@ -0,0 +1,7 @@
+class Person:
+    def __init__(self, name, parents=None) -> None:
+        self.name = name
+        self.parents = [] if parents is None else parents
+
+    def addParent(self, parent: "Person"):
+        self.parents.append(parent)