I need the code below to calculate Distance Traveled through Speed & Time Driving Versus Miles Per Gallon. I am unable to get the formula to work correctly. First code will be the example, and the second code will be what I have so far.

First Code:

import tkinter as tk

from tkinter import ttk

def click_calculateButton():

miles = float( milesText.get() )# get miles driven from the miles textfield

gas = float( gasText.get() )# get gas used from the gas textfield

mpg = miles / gas# do the math!

mpgText.set( round(mpg,1) )# display the output

def command_exitButton():

root.destroy()

# create root window

root = tk.Tk()

root.title("MPG Calculator")

root.geometry("280x150")# size of window

# create frame and add it to the root window

frame = ttk.Frame(root, padding="10 10 10 10")

frame.pack(fill=tk.BOTH, expand=True)

# create labels and textfields

ttk.Label(frame, text="Miles Driven:").grid(column=0, row=0, padx=5, pady=5, sticky=tk.E)# display label in grid

milesText = tk.StringVar()

ttk.Entry(frame, width=25, textvariable=milesText).grid(column=1, row=0)

ttk.Label(frame, text="Gas Used:").grid(column=0, row=1, padx=5, pady=5, sticky=tk.E)

gasText = tk.StringVar()

ttk.Entry(frame, width=25, textvariable=gasText).grid(column=1, row=1)

# createa button and add it to the window

ttk.Button(frame, text="Calculate", command=click_calculateButton).grid(column=0, row=2, padx=5, pady=5, sticky=tk.E)

ttk.Button(frame, text="Exit", command=command_exitButton).grid(column=1, row=2, padx=5, pady=5, sticky=tk.W)

ttk.Label(frame, text="MPG:").grid(column=0, row=3, padx=5, pady=5, sticky=tk.E)

mpgText = tk.StringVar()

mpgEntry = ttk.Entry(frame, width=25, textvariable=mpgText, state="readonly").grid(column=1, row=3) # notice readonly!

2nd Code:

import tkinter as tk

from tkinter import ttk

def click_calculateButton():

time = float( timeText.get() )

speed = float( speedText.get() )

distance = speed * time

distanceText.set( round(distance,1) )

def command_exitButton():

root.destroy()

root = tk.Tk()

root.title("Distance Calculator")

root.geometry("280x150")

frame = ttk.Frame(root, padding="10 10 10 10")

frame.pack(fill=tk.BOTH, expand=True)

ttk.Label(frame, text="Time Driving:").grid(column=0, row=0, padx=5, pady=5, sticky=tk.E)

timeText = tk.StringVar()

ttk.Entry(frame, width=25, textvariable=timeText).grid(column=1, row=0)

ttk.Label(frame, text="Speed:").grid(column=0, row=1, padx=5, pady=5, sticky=tk.E)

speedText = tk.StringVar()

ttk.Entry(frame, width=25, textvariable=speedText).grid(column=1, row=1)

ttk.Button(frame, text="Calculate", command=click_calculateButton).grid(column=0, row=2, padx=5, pady=5, sticky=tk.E)

ttk.Button(frame, text="Exit", command=command_exitButton).grid(column=1, row=2, padx=5, pady=5, sticky=tk.W)

ttk.Label(frame, text="Distance:").grid(column=0, row=3, padx=5, pady=5, sticky=tk.E)

distanceText = tk.StringVar()

distanceEntry = ttk.Entry(frame, width=25, textvariable=distanceText, state="readonly").grid(column=1, row=3)