Vector3 Class in python3

Vector3.py

import math
class Vector3:
    x = 0
    y = 0
    z = 0
    def __init__(self, _x, _y, _z):
        self.x = _x
        self.y = _y
        self.z = _z
    def __add__(self, other):
        return Vector3(self.x+other.x, self.y+other.y, self.z+other.z)
    def __sub__(self, other):
        return Vector3(self.x-other.x, self.y-other.y, self.z-other.z)
    def __mul__(self, other):
        return Vector3(self.x*other.x, self.y*other.y, self.z*other.z)
    def __truediv__(self, other):
        return Vector3(self.x/other.x, self.y/other.y, self.z/other.z)
    def __repr__(self):
        return "("+str(self.x)+", "+str(self.y)+", "+str(self.z)+")"
    def dist(self, other):
        return math.sqrt(math.pow((self.x-other.x), 2)+math.pow((self.y-other.y), 2)+math.pow((self.z-other.z), 2))
    def magnitude(self):
        return math.sqrt(math.pow(self.x, 2)+math.pow(self.y, 2)+math.pow(self.z, 2))
    def normalize(self):
        self.x = self.x / self.magnitude()
        self.y = self.y / self.magnitude()
        self.z = self.z / self.magnitude()