def __len__(self):
        return self.num_geom

    ### Methods for compatibility with ListMixin ###
parses through the xode tree recursively and finds all bodies and geoms for drawing.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/gis/geos/collections.py/GeometryCollection.__len__--crossover with--dataset/ETHPy150Open pybrain/pybrain/pybrain/rl/environments/ode/environment.py/ODEEnvironment._parseBodies