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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 getBottomLeft(self):
 """ Retrieves the the bottom left coordinate of the line as tuple. Coordinates must be numbers. """

        x1 = float(self.get_x1())
        x2 = float(self.get_x2())
        y1 = float(self.get_y1())
        y2 = float(self.get_y2())
        if x1 < x2:
            if y1 < y2:
                return (x1, y1)
            else:
                return (x1, y2)
        else:
            if y1 < y2:
                return (x2, y1)
            else:
                return (x2, y2)