Python Turtle 窗口每运行 2 次就会崩溃一次 [英] Python Turtle window crashes every 2nd time running

问题描述

下面的代码是在python中使用Turtle绘制的基本正方形.

The code below is a basic square drawing using Turtle in python.

第一次运行代码有效.但是再次运行代码会激活一个无响应的 Turtle 窗口，随后每次都会崩溃.

Running the code the first time works. But running the code again activates a Turtle window that is non-responsive and subsequently crashes every time.

错误信息包括raise Terminator 和Terminator

在 Spyder 中重新启动内核(戴尔台式机上的 Python 3.6)修复了这个问题，因为我可以再次成功运行代码，但根本原因是个谜?

Restarting kernel in Spyder (Python 3.6 on a Dell Desktop) fixes the problem in that I can then run the code again successfully, but the root cause is a mystery?

链接到另一个类似但作为尚未得到答复.

Link to another question that is similar but as yet unanswered.

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Please +1 this question if you find it worthy of an answer!!

import turtle
bob = turtle.Turtle()
print(bob)
for i in range(4):
    bob.fd(100)
    bob.lt(90)

turtle.mainloop()

推荐答案

我意识到这看起来完全不令人满意，但我发现创建乌龟:

I realize this will seem wholly unsatisfactory, but I have found that creating the turtle with:

try:
    tess = turtle.Turtle()
except:
    tess = turtle.Turtle()  

有效(也就是说，消除了每隔一段时间工作"的部分.我也从

works (that is, eliminates the "working every other time" piece. I also start with

wn = turtle.Screen()

并以

from sys import platform
if platform=='win32':
    wn.exitonclick()

如果没有这些部件，如果我尝试在 Windows 中移动海龟图形窗口，事情就会中断.(在 Windows 机器上为 Python 3.6 运行 Spyder)当然，OSX 在没有 exitonclick() 命令的情况下非常满意，并且对它不满意，因此添加了结束功能修复"的平台特定版本.OSX 仍然需要 try...except 部分.

Without those parts, if I try to move the turtle graphics windows in Windows, things break. (running Spyder for Python 3.6 on a Windows machine) edit: of course, OSX is perfectly happy without the exitonclick() command and unhappy with it so added platform specific version of ending "feature fix." The try...except part is still needed for OSX.

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