In Python, Write a GUI program that calculates the tip and total to pay at a restaurant. The user should enter the amount of the bill without the tip, and then be given choices as to the percent to tip, say, 10%, 15%, 18%, or 20%, by radio buttons. When the user clicks a radio button, the tip is calculated, shown to the user, and added to the bill for the total to be paid. The total is displayed as well. I have a good amount of code done. Please help me comment it better and finish the rest of the percentages

import tkinter as t <--------- PLEASE Do Not use (from tkinter import *) it's not working with my interpreter! Please just avoid it. Thank you! #Creating buttons. class Calculator(Frame): """ A GUI tip calculator.""" def __init__(self, master): Frame.__init__(self, master) self.grid() self.creating_buttons()

def creating_buttons(self): """This list includes Entry fields, which the user will use to define several objects such as Bill, and how many people are paying on that bill.""" #Create an entry field button for how much the bill total is. #Create a label bill_lbl = Label(self,text = "Bill: ") bill_lbl.grid(row = 1, column = 0,columnspan = 1, sticky = W) #Create an Entry field. ## Create a StringVar and link it to the entry box self.billvar = StringVar() bill_ent = Entry(self, textvariable = self.billvar) bill_ent.grid(row = 1, column = 1, sticky = W) #Create a Button for how many people will be paying on the bill #Create label people_paying_lbl = Label(self, text = "How many people are paying on this bill?: ") people_paying_lbl.grid(row = 2, column = 0, columnspan = 1, sticky = W) #Create an entry field ## Create a StringVar and link it to the entry box self.pplvar = StringVar() people_paying_ent = Entry(self, textvariable = self.pplvar) people_paying_ent.grid(row = 2, column = 1, sticky = W) #Create a text box to display the totals in ## This had to be self.bill_total_txt, to be able to put text in it from the total function self.bill_total_txt = Text(self, height = 10, width = 40, wrap = WORD) self.bill_total_txt.grid(row = 3, column = 0, columnspan = 2, sticky = W) #Create a Submit button submit = Button(self, text = "Submit", command = self.total) submit.grid(row = 4, column = 0, sticky = W)

def total(self): """ Takes the values from Bill, and # of people to get the amount that will be displayed in the text box.""" TAX = .15 ## Try to convert the bill to a float and the number of people to an integer try: bill = float(self.billvar.get()) people = int(self.pplvar.get()) ## If something goes wrong tell the user the input is invalid except: self.bill_total_txt.delete(0.0, END) self.bill_total_txt.insert(0.0, 'Invalid input') ## If the conversion was possible, calculate the tip, the total amount and the amout per person and format them as a string with two decimals ## Then create the complete message as a list and join it togeather when writing it to the textbox else: tip = "%.2f" % (TAX * bill) tot = "%.2f" % (TAX * bill + bill) tot_pp = "%.2f" % ((TAX * bill + bill) / people) Total = ["The tip is: $", tip, " The total for the bill is: $", tot, " divided among the people paying equally is: $", tot_pp, " per person."] self.bill_total_txt.delete(0.0, END) self.bill_total_txt.insert(0.0, ''.join(Total))

#Starting the Program root = Tk() root.title("Tip Calculator") app = Calculator(root) root.mainloop()