progress bar en ttk
*******************


.. code-block:: python

    import tkinter as tk
    from tkinter import ttk
    
    def click(event):
            # can be a float
            increment = 10
            pbar.start()
            #pbar.step(increment)
    
    
    root = tk.Tk()
    root.title('ttk.Progressbar')
    pbar = ttk.Progressbar(root, length=300, mode='determinate')
    pbar.pack(padx=5, pady=5)
    btn = tk.Button(root, text="Click to advance progress bar")
    # bind to left mouse button click
    btn.bind("<Button-1>", click)
    btn.pack(pady=10)
    
    root.mainloop()

vous pouvez changer l’option mode: determinate / indeterminate