from tkinter import *

root = Tk()
root.title("Python Tkinter Spinbox Command")
root.geometry("400x200")
root.resizable(0, 0)
root.config(bg="#d9ead3")
def app():
    v = var.get()
    msg.config(
        text=f'Escolheste a fruta:  {var.get()}',
        font=('sans-serif', 14))


var = StringVar()
texto1 = Label(text="Escolha uma fruta",
               font=("Arial", "13", "bold"),bg="#d9ead3",fg="#bf9000")
texto1.place(relx=0.35, rely=0.05)

a= Spinbox(
    textvariable=var,
    value=['Bananas', 'Morangos', 'Maçãs', 'Uvas','Clementinas','Pêras'],
    increment=2,
    width=10,
    font=('sans-serif', 18),command=app).place(relx=0.3,rely=0.25)
msg = Label(
    root,
    text='',
    bg='#d9ead3')
msg.place(relx=0.15,rely=0.55)
root.mainloop()