inheritance_domain_seperation.py

class Parent:
 def __init__(self, name):
   self.name = name

   self.safe_open = False
   self.armed = False
   self.children = []
  
 def teach_children(self, topic):
   for child in self.children:
      child.teach(topic)

 def have_child(self, name):
   child = Child(name, parent)
   self.children.append(child)

 def open_gun_safe(self):
   self.safe_open = True
   self.take_gun()

 def take_gun(self):
   if self.safe_open:
     self.armed = true

class Child(Parent):
 def __init__(name, parent):
   super().__init__()
   self.parent = parent
   self.age = 0
   self.mature = False
   self.educated_on = []

 def grow_one_year(self)
   self.age += 1
  
 def teach(self, topic)
   self.educated_on.append(topic)