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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_left(point0, point1, point2):
 """ Tests if a point is Left|On|Right of an infinite line. Ported from the C++ version: on http://geomalgorithms.com/a03-_inclusion.html .. note:: This implementation only works in 2-dimensional space. :param point0: Point P0 :param point1: Point P1 :param point2: Point P2 :return: >0 for P2 left of the line through P0 and P1 =0 for P2 on the line <0 for P2 right of the line """

    return ((point1[0] - point0[0]) * (point2[1] - point0[1])) - ((point2[0] - point0[0]) * (point1[1] - point0[1]))