def obj(self, objid):
        if objid not in self._objs:
            raise KeyError, "unknown object id %s" % (objid)
        return self._objs[objid]
u.length() --> float
dataset/ETHPy150Open coreemu/core/daemon/core/session.py/Session.obj--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.5/extras/completion/py/pymel/util/arrays.py/VectorN.length