Smooth animations in plotly for python

Hi,

I want to share  code for doing smooth animations in Plotly for Python (using a Jupyter Notebook)
import plotly.graph_objects as go
import numpy as np

ts = np.linspace(0,2*np.pi,100)


frames = [
    go.Frame(
        data=[go.Scatter(
        x=[np.cos(t),2*np.cos(2*t)],
        y=[np.sin(t),2*np.sin(2*t)])
             ]
    )
    for t in ts
]

fig = go.Figure(
    data=[go.Scatter(x=[0, 1], y=[0, 1])],
    layout=go.Layout(
        xaxis=dict(range=[-3, 3], autorange=False),
        yaxis=dict(range=[-3, 3], autorange=False),
        width=800,
        height=800,
        title="Start Title",
        updatemenus=[dict(
            type="buttons",
            buttons=[dict(label="Play",
                          method="animate",
                          args=[None,{"frame": {"duration": 5}}])])]
    ),
    frames=frames
)

fig.show()