from sympy import *
from spb import *
var("x:z")
graphics(
    vector_field_3d(z, y, x, (x, -10, 10), (y, -10, 10), (z, -10, 10),
        n=8, quiver_kw={"scale": 0.5, "line_width": 0.1, "head_size": 10}),
    backend=KB, xlabel="x", ylabel="y", zlabel="z")