#Example usage:

coords = [(832,1093),(810,1121),(787,1156),(827,1173),(838,1167),(858,1157),(873,1132),(873,1107),(832,1093)]
points = []

for coord in coords:
   point = Point(p[0],p[1])
   coords.append(point)

poly = Contour(coords)

centroidPoint= poly.centroid()

print centroidPoint.x
print centroidPoint.y