Restaurant Inventory System Python

The Restaurant Point of  sales System is developed using python. The project is built to manage  items and transactions. To make a new transaction, fields such as: Item and ingredients , qty and payment needs to be selected. If you like to learn point of sales systems step by step, this is the right place to learn from the beginning.

from tkinter import *
from tkinter import ttk

def pay():
    totall = float(tot.cget("text"))
    pay = float(e11.get())
    bal = pay - totall
    balText.set(bal)



def selection():
    selection =   radio.get()
    selection1 =  radio1.get()
    qty = int(e1.get())
    if(selection==1):
     if(selection1 ==1):
        item = "Roll"
        inge = "veg"
        price = 50
        tot = int(price * qty)
        tempList = [[item + " " + inge , price, qty, tot]]
        tempList.sort(key=lambda e: e[1], reverse=True)
        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
              listBox.insert("", "end", values=(item, price, qty, tot))

     elif  (selection1 == 2):
         item = "Roll"
         inge = "chicken"
         price = 100
         tot = int(price * qty)
         tempList = [[item + " " + inge, price, qty, tot]]
         tempList.sort(key=lambda e: e[1], reverse=True)
         for i, (item, price, qty, tot) in enumerate(tempList, start=1):
             listBox.insert("", "end", values=(item, price, qty, tot))

     elif (selection1 == 3):
         item = "Roll"
         inge = "Fish"
         price = 80
         tot = int(price * qty)
         tempList = [[item + " " + inge, price, qty, tot]]
         tempList.sort(key=lambda e: e[1], reverse=True)
         for i, (item, price, qty, tot) in enumerate(tempList, start=1):
           listBox.insert("", "end", values=(item, price, qty, tot))


    elif (selection == 2):

     if (selection1 == 1):

        item = "Pasty"

        inge = "veg"

        price = 80

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))


     elif (selection1 == 2):

        item = "Pasty"

        inge = "chicken"

        price = 90

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))


     elif (selection1 == 3):

        item = "Pasty"

        inge = "Fish"

        price = 120

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))

    elif (selection == 3):

     if (selection1 == 1):

        item = "Bun"

        inge = "veg"

        price = 60

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))


     elif (selection1 == 2):

        item = "Bun"

        inge = "chicken"

        price = 70

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))


     elif (selection1 == 3):

        item = "Bun"

        inge = "Fish"

        price = 40

        tot = int(price * qty)

        tempList = [[item + " " + inge, price, qty, tot]]

        tempList.sort(key=lambda e: e[1], reverse=True)

        for i, (item, price, qty, tot) in enumerate(tempList, start=1):
            listBox.insert("", "end", values=(item, price, qty, tot))

    sum1 = 0.0
    for child in listBox.get_children():
        sum1 += float(listBox.item(child, 'values')[3])
    totText.set(sum1)





top = Tk()
top.geometry("800x500")
top.title("Restaurant Inventory System Python")

radio = IntVar()
radio1 = IntVar()
global totText
global balText
totText = StringVar()
balText = IntVar()
R1 = Radiobutton(top, text="Roll", variable=radio, value=1)
R1.pack(anchor=W)
R1.place(x=10,y=10)

R2 = Radiobutton(top, text="Pasty", variable=radio, value=2)
R2.pack(anchor=W)
R2.place(x=10,y=40)

R3 = Radiobutton(top, text="Bun", variable=radio, value=3)
R3.pack(anchor=W)
R3.place(x=10,y=70)



R4 = Radiobutton(top, text="Veg", variable=radio1, value=1)
R4.pack(anchor=W)
R4.place(x=80,y=10)

R2 = Radiobutton(top, text="Chicken", variable=radio1, value=2)
R2.pack(anchor=W)
R2.place(x=80,y=40)

R3 = Radiobutton(top, text="Fish", variable=radio1, value=3)
R3.pack(anchor=W)
R3.place(x=80,y=70)

e1 = Entry(top)
e1.place(x=80, y=100)
Label(top, text="Qty").place(x=10, y=100)

tot = Label(top, text="",font="arial 22 bold", textvariable=totText)
tot.place(x=450, y=10)

Button(top, text="Add",command = selection,height=3, width= 13).place(x=80, y=130)



e11 = Entry(top)
e11.place(x=450, y=50)

e12 = Entry(top)

balance = Label(top, text="",font="arial 22 bold", textvariable=balText).place(x=450, y=80)
Button(top, text="PayNow",command = pay,height=3, width= 13).place(x=650, y=120)


cols = ('item', 'price', 'qty','total')
listBox = ttk.Treeview(top, columns=cols, show='headings')

for col in cols:
    listBox.heading(col, text=col)
    listBox.grid(row=1, column=0, columnspan=2)
    listBox.place(x=10, y=220)

top.mainloop()

i have attached the video link below. which will do this tutorials step by step.