невозможно закрыть tkinter после использования destroy ()

Question

Использование окна tkinter для получения некоторого пользовательского параметра и его сохранения в словаре после нажатия кнопки «СОХРАНИТЬ».Но tkinter не закрывается в консоли. Как закрыть tkinter после получения данных ...

import tkinter as tk
riskparams = {}

Это упрощенная функция с воспроизведением вопроса здесь

def setriskmgmtparams():
    risk = tk.Tk()
    risk.title("Risk Management System")
    w = 650
    h = 450
    ws = risk.winfo_screenwidth()
    hs = risk.winfo_screenheight()
    x = ws - w
    y = hs - h
    risk.geometry('%dx%d+%d+%d' % (w, h, x, y))

    def savedata(*event):
        global riskparams
        riskparams['MaxQty'] = int(MQ_box.get())                
        #Setting Price % Range, if any not correct reset to defaults 7%
        riskparams['PriceLowRange'] = float(pricerange1.get())/100 
        riskparams['PriceHighRange'] = float(pricerange2.get())/100                    
        riskparams['MaxOrderVal'] = int(maxorderval.get())
        riskparams['Norderpsec'] = int(norderval.get())
        riskparams['MaxTurnover'] = int(maxturnover.get())                                
        risk.destroy()
        print(" TTAPI | RMS checks has been set ") 
        return

    rows = 0
    while rows < 11:
        risk.rowconfigure(rows, weight=1)
        risk.columnconfigure(rows, weight=1)
        rows +=1

    orderlevel = tk.Label(risk, text="RMS CHECKS PARAMS by API")
    orderlevel.grid(row=0, column=1, sticky='NESW')

    MaxQuantity = tk.Label(risk, text="Max Quantity per order:")
    MaxQuantity.grid(row=1, column=1, sticky='E')
    mqvar = tk.StringVar(risk, value='100000')
    MQ_box = tk.Entry(risk, textvariable=mqvar)
    MQ_box.bind("<Return>", savedata)
    MQ_box.grid(row=1, column=2, sticky='W')

    #price range
    price1 = tk.Label(risk, text="Price Range % LOW:")
    price1.grid(row=2, column=1, sticky='E')
    pricevar1 = tk.StringVar(risk, value='-10')
    pricerange1 = tk.Entry(risk, textvariable=pricevar1)
    pricerange1.bind('<Return>', savedata)
    pricerange1.grid(row=2, column=2, sticky='W')
    price2 = tk.Label(risk, text="Price Range % HIGH:")
    price2.grid(row=3, column=1, sticky='E')
    pricevar2 = tk.StringVar(risk, value='10')
    pricerange2 = tk.Entry(risk, textvariable=pricevar2)
    pricerange2.bind('<Return>', savedata)
    pricerange2.grid(row=3, column=2, sticky='W')

    ordval = tk.Label(risk, text="Max Order Value per order :")
    ordval.grid(row=4, column=1, sticky='E')
    mxordval = tk.StringVar(risk, value='2000000')
    maxorderval = tk.Entry(risk, textvariable=mxordval)
    maxorderval.bind('<Return>', savedata)
    maxorderval.grid(row=4, column=2, sticky='W')

    norders = tk.Label(risk, text="No Orders allowed per Second/Client :")
    norders.grid(row=5, column=1, sticky='E')
    nordval = tk.StringVar(risk, value='2')
    norderval = tk.Entry(risk, textvariable=nordval)
    norderval.bind('<Return>', savedata)
    norderval.grid(row=5, column=2, sticky='W')

    maxturn = tk.Label(risk, text="Max TurnOver per day/Client :")
    maxturn.grid(row=6, column=1, sticky='E')
    maxturnval = tk.StringVar(risk, value='10000000')
    maxturnover = tk.Entry(risk, textvariable=maxturnval)
    maxturnover.bind('<Return>', savedata)
    maxturnover.grid(row=6, column=2, sticky='W')

    savebtn = tk.Button(risk, 
                        text='SAVE', 
                        bg = "yellow",
                        command=savedata)
    savebtn.bind('<Return>', savedata)
    savebtn.grid(row=8, column=2, sticky='NESW')      

    #Run the app
    risk.mainloop()

Вызов функции Но окно tkinter закрывается и цикл не закрывается, как закрыть цикл

setriskmgmtparams()