How to get widget object from ttk.Notebook tab?

技术标签： Python  tkinter.  TK.

I have notebook widget of class ttk.Notebook. In this notebook I'm adding many tabs:

notebook.add(child=my_object, text='my tab')

How can I get tab object and not tab name?

更新1

So, there is children dictionary. OK that brings next problem.

What I really want to do is to take my hands on object of active tab in Notebook.所以我有这个：

notebook.children[notebook.select().split('.')[2]])

but it looks ugly. Unfortunately widget name returned by select() has not exactly same format as widget names in children[]. Is there any method of reliable translation of one format to another or split() will never fail in this situation?

This is demo of problem:

#!/usr/bin/env python3

from tkinter import *
from tkinter.ttk import *


class App(Tk):
    def __init__(self):
        super().__init__()
        notebook = Notebook(self)
        notebook.add(child=Frame(notebook), text='tab1')
        notebook.add(child=Frame(notebook), text='tab2')
        notebook.add(child=Frame(notebook), text='tab3')
        notebook.pack()

        print('Tabs are: ', notebook.children.keys())
        print('Active tab: ', notebook.select())
        print(type(notebook.children[notebook.select().split('.')[2]]))

App().mainloop()

看答案

这 notebook.tabs() call returns a list of "tab names" which correspond to the children widget objects. A call to someWidget.nametowidget(tab_name) resolves to the child widget associated with that tab.

In other words, the Notebook .tabs() method returns a list of the names of the Notebook's children.

For your UPDATE:

The same as above applies, only now it's:

active_object = notebook.nametowidget(notebook.select())

Different versions of Python use different naming conventions, so using nametowidget() is the better way to go rather than manually processing the name to get the desired key to use for a reference into the children dict.

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