Tkinter pyimage不存在 [英] Tkinter pyimage doesn't exist

问题描述

我知道有很多类似的问题，但没有任何简单的我能够理解。我有以下代码：

I know there are lot of similar questions, but there aren't any simple enough that I am able to understand. I have the following code:

import Tkinter as tk
from PIL import Image, ImageTk

class MainWindow:
    def __init__(self, master):
        canvas = Canvas(master)
        canvas.pack()
        self.pimage = Image.open(filename)
        self.cimage = ImageTk.PhotoImage(self.pimage)
        self.image = canvas.create_image(0,0,image=self.cimage)


filename = full_filename
root = tk.Tk()
x = MainWindow(root)
mainloop()

我收到以下错误：

TclError: image "pyimage36" doesn't exist

我已经阅读了一些有关图像对象被垃圾清理的内容但我不太明白。

I've read some stuff about the image objects getting garbage cleaned but I don't quite understand it.

推荐答案

想出来。出于某种原因，当在调试器中运行时，如果任何先前的执行抛出错误，我得到pyimage不存在错误。但是，如果我重新启动调试器（或者以前没有执行过的脚本抛出错误），那么程序运行正常。

Figured it out. For some reason, while running in the debugger, if any previous executions had thrown errors I get the "pyimage doesn't exist" error. However, if I restart the debugger (or no previously executed scripts have thrown errors), then the program runs fine.

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