title: Python. Data structure for storing objects coordinates on map
body: <p>I'm developing the game server. I want data structure for storing 3d-coordinates (x, y, z) of the objects on the map. This objects can dynamically change their position (move, teleport, be destroyed etc). I want to store this coordinates in specific order according to their visual position on the map. So, I think using graph for this purpose is good choice. But I'm not sure.</p>
  
  <p>Please, notice, I need to store real-time coordinates for many objects (about 4-5 thousands). Does it exists library or algorithm to implement what I need ?</p>