from directshowbaseShowBase import ShowBasefrom panda3dcore import CollisionTraverser CollisionNode CollisionHandlerQueue CollisionRayclass MyAppShowBase def __init__self ShowBase__init__sel
You need to import the CollisionSphere class from panda3d.core:
from panda3d.core import CollisionTraverser, CollisionNode, CollisionHandlerQueue, CollisionRay, CollisionSphere
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