class Point: """ create a new Point, at coordinates x, yz """

# create a modified version of the Point class with three attributes

# x, y, and z, representing a point in a 3D space.

# Include a modified __init__(), distance_from_origin()methods

# which extend from 2D to 3D naturally.

# Note that in 3D square root (x + y + z) is the distance from the origin.