def count(self, start, stop):
        s1 = self.pickler.dumps(start)
        s2 = self.pickler.dumps(stop)
        return self.backend_structure().count(s1, s2)
Create a coordinate sequence, set X, Y, [Z], and create point
dataset/ETHPy150Open lsbardel/python-stdnet/stdnet/odm/struct.py/OrderedMixin.count--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/gis/geos/point.py/Point._create_point