from math import hypot

class Vector:

def __init__(self, x=0, y=0):

self.x = x

self.y = y

def __repr__(self):

return 'Vector({0},{1})'.format(self.x, self.y)

def __abs__(self):

return hypot(self.x, self.y)

def __bool__(self):

return bool(abs(self))

# return bool(self.x or self.y)

def __add__(self, other):

return Vector(self.x + other.x, self.y + other.y)

def __mul__(self, scalar):

return Vector(self.x * scalar, self.y * scalar)

def __rmul__(self, scalar):

return Vector(self.x * scalar, self.y * scalar)

def main():

vector = Vector(2, 6)

print(2 * vector)

if __name__ == '__main__':

main()