From https://pythonforge.com/interfaces-graphiques-tkinter/ :
from tkinter import * from tkinter.ttk import Progressbar from tkinter import ttk window = Tk() window.title("Apprendre tkinter") window .geometry( '300x100' ) style = ttk.Style() style.theme_use('default') style.configure("black.Horizontal.TProgressbar", background='black') bar = Progressbar(window, length=200, style='black.Horizontal.TProgressbar') bar['value'] = 70 bar.grid(column=0, row=0) window.mainloop()
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From https://pythonforge.com/interfaces-graphiques-tkinter/ :