title: Using a '.' in your key name in MongoDB (PyMongo)
body: <p>When I try saving a dict with a '.' in the key PyMongo throws an error (InvaildName) however I do see (on the Mongodb website) that keys can have '.''s in them. Why is it that pymongo won't let me save these docs? Is there an issue with them and Mongo?</p>
  
  <p>James</p>