WHAT IS problem of this code

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1 
def Degree_one():
    A = 0 
    entered_num = ''
    def button_click(num):
        global entered_num
        entered_num += str(int(num))
        entry_var.set(entered_num)
    save_Clicked = None
    def add_decimal():
        global entered_num
        if '.' not in entered_num:
            entered_num += '.'
            entry_var.set(entered_num)
    def save_num():
        global entered_num
        global save_Clicked
        print("Number saved:", entered_num)
        save_Clicked = True
    Degree_onewn = tk.Tk()
    Degree_onewn.title("Degree One")
    label1 = tk.Label(Degree_onewn, text="Ax+b = 0", font=("arial", 20))
    label1.grid(row=0, column=0, columnspan=3)
    label2 = tk.Label(Degree_onewn, text="Enter A Value", font=("arial", 20))
    label2.grid(row=1, column=0, columnspan=3)
    entered_number = ""
    entry_var = tk.StringVar()
    entry = tk.Entry(Degree_onewn, textvariable=entry_var, font=("arial", 20), width=10)
    entry.grid(row=2, column=0, columnspan=3)
    buttons = []
    for i in range(1, 10):
        button = tk.Button(Degree_onewn, text=str(i), font=("arial", 20), command=lambda i=i: button_click(i), width=10)
        buttons.append(button)
    row_num = 3
    col_num = 0
    for i, button in enumerate(buttons):
        button.grid(row=row_num, column=col_num)
        col_num += 1
        if col_num == 3:
            col_num = 0
            row_num += 1
    decimal_button = tk.Button(Degree_onewn, text=".", font=("arial", 20), command=add_decimal, width=10)
    decimal_button.grid(row=6, column=0)
    save_button = tk.Button(Degree_onewn, text="Save", font=("arial", 20), command=save_num, width=10)
    save_button.grid(row=6, column=1)
    while not save_Clicked:
        Degree_onewn.update()
    if  save_Clicked:
        Degree_onewn.destroy()
    A = entry
2

You have not provided enough information for us to be able to help you.

What do you expect to happen when you run this code?

What happens instead?

3

Welcome aboard!

Can you provide the list of errors when this is run? We will need to see the error and the line the error is on.

4

Thanks sloved