from sympy import *
from spb import *
import numpy as np
t = symbols("t")
z = np.linspace(0, 6*np.pi, 100)
x = z * np.cos(z)
y = z * np.sin(z)
p1 = plot3d_list(x, y, z,
    show=False, scatter=False)
p2 = plot3d_list(
    [t * cos(t)], [t * sin(t)], [t],
    params={t: (3*pi, 0, 6*pi)},
    backend=PB, show=False, scatter=True,
    imodule="panel")
(p2 + p1).show()