tkinter笔记本python选项卡标题重叠

Question

Quick question all,

My (very simple) tkinter GUI program:

import tkinter as tk
from tkinter import ttk

if __name__ == "__main__":
    root = tk.Tk()
    test = ttk.Notebook(root)
    test.grid()
    tab1 = ttk.Frame(test)
    tab2 = ttk.Frame(test)
    tab3 = ttk.Frame(test)

    test.add(tab1, text="1")
    test.add(tab2, text="Tab Two")
    test.add(tab3, text="Tab Three")

    root.title("CONTROL PANEL")
    root.mainloop()

Result:

Why is the second tab being overlapped by the third?

Initially, i thought it was a grid option that i had missed but i could not find the relevant option. Thanks guys.

EDIT: This occurs when tab 1 has a short title.

Answer 1

This seems to be an issue with the following themes: (' winnative ', 'clam', ' alt ', ' default ', 'classic', ' vista ', ' xpnative ')

When either a 'clam' or 'classic' style is used, the tab titles fit. ie

import tkinter as tk
from tkinter import ttk

if __name__ == "__main__":

    root = tk.Tk()
    test = ttk.Notebook(root)
    test.grid()
    tab1 = ttk.Frame(test)
    tab2 = ttk.Frame(test)
    tab3 = ttk.Frame(test)

    # added code to change style
    s = ttk.Style(test)
    s.theme_use('STYLE AS ABOVE')
    ############################

    test.add(tab1, text="1")
    test.add(tab2, text="Tab Two")
    test.add(tab3, text="Tab Three")

    root.title("CONTROL PANEL")
    root.mainloop()