Bokeh in CoCalc (Python 3 system-wide kernel)

import sys
sys.version

import bokeh
bokeh.__version__

from bokeh.io import output_notebook
from bokeh.plotting import show, figure
output_notebook()

import numpy as np
np.__version__

import matplotlib
matplotlib.__version__

import matplotlib.pyplot as plt

x = np.linspace(-3, 3, 201)
f = lambda x: x**4 - 2 * x**3 + 3 * x**2 + 2 * x + 1
f2 = lambda x: 30 * np.sin(x) * x
y = f(x)
y2 = f2(x)

fig = figure(plot_width=600, plot_height=400)
fig.line(x, y, line_width=2)
fig.line(x, y2, line_width=1, color="green")
fig.xaxis.axis_label = "x"
fig.yaxis.axis_label = "y"
show(fig)