Hello I am new to programming and I am trying to make a calculator that I can input the exchange rate I buy at and the percentage I mark up by so then I will get the selling price.
I am struggling with the code that needs to add my entry then display in my label.
from tkinter import *
class Application(Frame):
def __init__(self, master):
super(Application, self).__init__(master)
self.grid()
self.create_widgets()
def create_widgets(self):
# create first Label
self.L1 = Label(self , text="Exchange Rate : ")
self.L1.grid(row=0 , column=0 , sticky = E)
# create second Label
self.L2 = Label(self , text="Mark up percentage : ")
self.L2.grid(row=1 , column=0 , sticky = E)
# create third Label
self.L3 = Label(self , text="Buying price : ")
self.L3.grid(row=2 , column=0 , sticky = E)
# create fourth Label
self.ValueLabel = Label(self , text="Selling price : £ ")
self.ValueLabel.grid(row=5 , column=0 , sticky = E)
# create fifth label
self.Value = Label(self , ) # I want to print content4 here
self.Value.grid(row=5 , column=1)
# create first Entry
self.E1 = Entry(self , bd =5)
self.E1.grid(row=0 , column=1)
# create second Entry
self.E2 = Entry(self , bd =5)
self.E2.grid(row=1 , column=1)
# create third Entry
self.E3 = Entry(self , bd =5)
self.E3.grid(row=2 , column=1)
# create submit button
self.submit_bttn = Button(self, text = "Submit",command = self.on_button)
self.submit_bttn.grid(row = 6, column = 4, sticky = W)
def on_button(self):
content1 = int(self.E1.get())
content2 = int(self.E2.get())
content3 = int(self.E3.get())
content4 = int(content1*content2*content3)
root = Tk()
root.title("Calculator")
app = Application(root)
root.mainloop()
