Python, small exercise (calculate the straight length between two points)

#first, mathematical functions are introducedImportMath#create a class of pointsclassPoint ():#the coordinates of the initialization point (x, y)    def __init__(self,x=0,y=0): self.x=x self.y=y#gets the x-axis coordinates of a point    defGetX (self):returnself.x#get the y-coordinate of a point    defGetY (self):returnSelf.y#define a class of linesclassLine ():#two points of the initialization line    def __init__(SELF,P1,P2): self.x= P1.getx ()-p2.getx () self.y= P1.gety ()-p2.gety ()#Pythagorean CalculationSelf.len = MATH.SQRT (ABS (self.x) *abs (self.x) +abs (SELF.Y) *ABS (SELF.Y))#Get line length    defGetlen (self):returnSelf.len

Python, small exercise (calculate the straight length between two points)