Hello! I've been messing with tkinter and now have tried to make a MPG calculator using sliders.
My problem is that no matter how I move the sliders it does not update the mpg, I'm not sure what to tell the label to do for it to update.
I know the calculations themselves work because I made it print to the console as a test and it updated there.
import tkinter as tk root = tk.Tk() root.title('MPG calculator') root.geometry("620x200+300+300") scale = tk.Scale(root, label="Select a distance traveled.", from_=1, to=1500, tickinterval=0, resolution=1, length=600, showvalue='yes', orient='horizontal') scale.set(500) scale2 = tk.Scale(root, label="Select how large your fuel tank is.", from_=1, to=80, tickinterval=0, resolution=1, length=600, showvalue='yes', orient='horizontal') scale.set(12) dist = scale.get() tank = scale2.get() f = dist / tank result = 'You get %s miles per gallon.' % (f) label = tk.Label(root, text= result, bg='green') scale.grid(row=2, columnspan=2) scale2.grid(row=1, columnspan=2) label.grid(row=4, columnspan=4, pady=5) root.mainloop()
The attached file shows my problem. It shows 12 mpg no matter what.
Edited 7 Years Ago by Mensa180: n/a