Find centroid for Polygon

get-centroid.py

from shapely.geometry import asShape
from simplegeo import context

client = context.Client('your-key','your-secret')
context_response = client.get_context(37.775255,-122.40289)
neighborhoods = [feature for feature in context_response['features'] if feature['classifiers'][0]['category'] == 'Neighborhood']
if neighborhoods:
  neighborhood_handle = neighborhoods[0]['handle']
  neighborhood_boundary = asShape(client.get_feature(neighborhood_handle).to_dict()['geometry'])
  centroid = neighborhood_boundary.centroid.wkt
  print centroid