Python Tkinter 8.5导入消息框 [英] Python tkinter 8.5 import messagebox

问题描述

下面的代码在IDLE内运行良好，否则我将收到"NameError:未定义全局名称'messagebox'".但是，如果我明确声明from tkinter import messagebox，则无论从哪里运行都很好.

The following code runs fine within IDLE, but otherwise I get "NameError: global name 'messagebox' is not defined". However, if I explicitly state from tkinter import messagebox, it runs fine from where ever.

from tkinter import *
from tkinter import ttk 

root = Tk()
mainFrame = ttk.Frame(root)
messagebox.showinfo("My title", "My message", icon="warning", parent=mainFrame)

为什么IDLE不需要显式import语句，而在其他地方则需要它?

Why does IDLE not need the explicit import statement but elsewhere it is required?

推荐答案

消息框是tkinter的一个单独的子模块，因此只需从tkinter完全导入即可:

the messagebox is a separate submodule of tkinter, so simply doing a complete import from tkinter:

from tkinter import *

不导入消息框

它必须像这样被显式导入:

it has to be explicitly imported like so:

from tkinter import messagebox

与必须显式导入ttk相同的方式

in the same way that ttk has to be imported explicitly

它在空闲状态下工作的原因是因为空闲状态导入消息框是出于其自身的目的，并且由于空闲状态的工作方式，它的导入在空闲状态下可以访问

the reason it works in idle is because idle imports messagebox for its own purposes, and because of the way idle works, its imports are accessible while working in idle

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