南通网站建设服务爱站权重

首先，安装ipyturtle3 ref:ipyturtle3 · PyPI

pip install ipyturtle3

然后，安装ipycanvas

ipycanvas是一个需要安装在与JupyterLab实例相同环境的包。此外，您需要安装nodejs，并启用JupyterLab ipycanvas小部件。

所有这些都在ipycanvas安装说明中有详细介绍：

使用conda

conda install -c conda-forge ipycanvas

JupyterLab扩展

如果您已经安装了JupyterLab，还需要安装JupyterLab扩展。为了安装JupyterLab扩展，您需要先安装npm。您可以使用conda轻松安装npm：

conda install -c conda-forge nodejs

然后您可以安装JupyterLab扩展：

jupyter labextension install @jupyter-widgets/jupyterlab-manager ipycanvas

由于您提到您正在使用jupyterhub，如果您在集群上并且不是管理员，可能没有权限执行这些操作。如果是这种情况，请联系您的集群管理员，他们可能不允许用户启用扩展。

可以采用如下的代码测试是否安装成功

import ipyturtle3 as turtle
from ipyturtle3 import hold_canvas
myCanvas=turtle.Canvas(width=500,height=250)
display(myCanvas)
myTS=turtle.TurtleScreen(myCanvas)
myTS.clear()
myTS.bgcolor("lightgreen")
bob=turtle.Turtle(myTS)
jess=turtle.Turtle(myTS,isHolonomic=True)
jess.shape("square")
bob.shape("turtle")myTS.delay(200)
# Usual turtle Non-holonomic example
bob.forward(50)
bob.left(90)
bob.forward(50)
bob.left(90)
bob.forward(50)
bob.left(90)
bob.forward(50)#Holonomic
jess.moveleft(200)
jess.moveup(100)
jess.moveright(100)
jess.movedown(100)
jess.turnright(45)
jess.turn(-45)
jess.distance_at_angle(50,45)myTS.clear()# Rainbow benzene
colors = ['red', 'purple', 'blue', 'green', 'orange', 'yellow']
t = turtle.Turtle(myTS)
myTS.bgcolor('black')
for x in range(50):with(hold_canvas(myCanvas)):t.pencolor(colors[x%6])t.width(x//100 + 1)t.forward(x)t.left(59)

ref:https://stackoverflow.com/questions/72410176/how-to-display-canvas-with-ipycanvas-on-jupyterhub