title: Python Implementation of OPTICS (Clustering) Algorithm
body: <p>I'm looking for a decent implementation of the <a href="http://en.wikipedia.org/wiki/OPTICS_algorithm" rel="noreferrer">OPTICS</a> algorithm in Python. I will use it to form density-based clusters of points ((x,y) pairs).</p>
  
  <p>I'm looking for something that takes in (x,y) pairs and outputs a list of clusters, where each cluster in the list contains a list of (x, y) pairs belonging to that cluster.</p>