Restaurant Billing Management System Using Python with Tkinter (Graphical User Interface)
Introduction :
In the bustling world of restaurants, efficiency is paramount, especially when it comes to handling transactions and managing bills. A streamlined billing system not only ensures accuracy and speed but also contributes to a positive customer experience. Enter Python, a versatile programming language renowned for its simplicity and flexibility. In this post, we embark on a journey to develop a robust and efficient billing system tailored for restaurants, leveraging the power of Python.
Our goal is to create a billing system that not only simplifies the checkout process but also provides restaurant owners with valuable insights into sales trends, revenue generation, and customer preferences. By harnessing Python’s rich ecosystem of libraries and frameworks, we can design a solution that addresses the unique needs of restaurants, whether they’re small cafes, fine dining establishments, or fast-food chains.
Throughout this post, we’ll explore the various components of the billing system, from capturing orders and calculating bills to generating detailed invoices and managing payments. We’ll delve into the intricacies of database management, user interfaces, and integration with external systems to create a seamless and efficient workflow.
Join us as we dive into the world of restaurant billing systems, where Python serves as our trusty companion, empowering us to create innovative solutions that revolutionize the way restaurants manage their finances and serve their customers. By the end of this journey, you’ll have the knowledge and tools to develop your own billing system and elevate the performance of your restaurant business. Let’s get started on this exciting adventure!
How to Run the Code :
make a python file with any name you want then copy the code provided and paste and run the code, you don’t need to install any module for this projects.
Code Explanation:
This Python code is for a restaurant billing system built using the Tkinter library for the graphical user interface. Here’s an overview of the code:
Importing Necessary Libraries: The code begins by importing the required libraries such as Tkinter for GUI, random for generating random bill numbers, os and sys for system-related operations, and messagebox from Tkinter for displaying alerts.
Creating the Bill_App Class: The main functionality of the billing system is encapsulated within the
Bill_Appclass. The__init__method initializes the GUI window (root) and sets its properties such as size, title, and background color.Defining Variables: Various variables are defined to store customer details, item quantities, total prices, taxes, and bill numbers. These variables are initialized using the
IntVar()andStringVar()classes provided by Tkinter.Creating GUI Elements: The GUI elements such as labels, entry fields, and buttons are created and placed within different frames to organize the layout effectively. These elements include customer details, restaurant menu (snacks, main course, hygiene products), bill area, and billing summary.
Defining Functions: Several functions are defined to handle different aspects of the billing process:
total(self): Calculates the total bill amount, including taxes, based on the selected items and quantities.intro(self): Displays the introductory message and customer details in the bill area.billarea(self): Updates the bill area with the selected items, quantities, prices, and taxes.clear(self): Clears all the input fields and resets the variables to their initial values.exit1(self): Closes the application window.
Creating the Tkinter Window: Finally, an instance of the
Tk()class is created to initialize the Tkinter window, and theBill_Appobject is instantiated to run the application. Themainloop()method ensures that the application stays open and responsive to user interactions until the window is closed.
Overall, this code provides the foundation for a restaurant billing system with a user-friendly interface for entering customer details, selecting items from the menu, and generating accurate bills with taxes included.
Source Code:
from tkinter import *
import random
import os
import sys
from tkinter import messagebox
class Bill_App:
def __init__(self,root):
self.root=root
self.root.geometry("1350x700+0+0")
self.root.configure(bg="#0A7CFF")
self.root.title("Resturent Billing System - CodeWithCurious.com")
title=Label(self.root,text="Resturent Billing System",bd=12,relief=RIDGE,font=("Arial Black",20),bg="#A569BD",fg="white").pack(fill=X)
#===================================variables=======================================================================================
self.nutella=IntVar()
self.noodles=IntVar()
self.lays=IntVar()
self.oreo=IntVar()
self.muffin=IntVar()
self.silk=IntVar()
self.namkeen=IntVar()
self.atta=IntVar()
self.pasta=IntVar()
self.rice=IntVar()
self.oil=IntVar()
self.sugar=IntVar()
self.dal=IntVar()
self.tea=IntVar()
self.soap=IntVar()
self.shampoo=IntVar()
self.lotion=IntVar()
self.cream=IntVar()
self.foam=IntVar()
self.mask=IntVar()
self.sanitizer=IntVar()
self.total_sna=StringVar()
self.total_gro=StringVar()
self.total_hyg=StringVar()
self.a=StringVar()
self.b=StringVar()
self.c=StringVar()
self.c_name=StringVar()
self.bill_no=StringVar()
x=random.randint(1000,9999)
self.bill_no.set(str(x))
self.phone=StringVar()
#==========================================customer details label frame=================================================
details=LabelFrame(self.root,text="Customer Details",font=("Arial Black",12),bg="#A569BD",fg="white",relief=GROOVE,bd=10)
details.place(x=0,y=80,relwidth=1)
cust_name=Label(details,text="Customer Name",font=("Arial Black",14),bg="#A569BD",fg="white").grid(row=0,column=0,padx=15)
cust_entry=Entry(details,borderwidth=4,width=30,textvariable=self.c_name).grid(row=0,column=1,padx=8)
contact_name=Label(details,text="Contact No.",font=("Arial Black",14),bg="#A569BD",fg="white").grid(row=0,column=2,padx=10)
contact_entry=Entry(details,borderwidth=4,width=30,textvariable=self.phone).grid(row=0,column=3,padx=8)
bill_name=Label(details,text="Bill.No.",font=("Arial Black",14),bg="#A569BD",fg="white").grid(row=0,column=4,padx=10)
bill_entry=Entry(details,borderwidth=4,width=30,textvariable=self.bill_no).grid(row=0,column=5,padx=8)
#=======================================Resturant Menu=================================================================
snacks=LabelFrame(self.root,text="Starter",font=("Arial Black",12),bg="#E5B4F3",fg="#6C3483",relief=GROOVE,bd=10)
snacks.place(x=5,y=180,height=380,width=325)
item1=Label(snacks,text="Samosa",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=0,column=0,pady=11)
item1_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.nutella).grid(row=0,column=1,padx=10)
item2=Label(snacks,text="Paneer Tikka",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=1,column=0,pady=11)
item2_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.noodles).grid(row=1,column=1,padx=10)
item3=Label(snacks,text="Chicken Tikka",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=2,column=0,pady=11)
item3_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.lays).grid(row=2,column=1,padx=10)
item4=Label(snacks,text="Vegetable Pakora",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=3,column=0,pady=11)
item4_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.oreo).grid(row=3,column=1,padx=10)
item5=Label(snacks,text="Papdi Chaat",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=4,column=0,pady=11)
item5_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.muffin).grid(row=4,column=1,padx=10)
item6=Label(snacks,text="Tomato Soup",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=5,column=0,pady=11)
item6_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.silk).grid(row=5,column=1,padx=10)
item7=Label(snacks,text="Masala Papad",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=6,column=0,pady=11)
item7_entry=Entry(snacks,borderwidth=2,width=15,textvariable=self.namkeen).grid(row=6,column=1,padx=10)
#=================================== Main Course =====================================================================================
grocery=LabelFrame(self.root,text="Main Course",font=("Arial Black",12),relief=GROOVE,bd=10,bg="#E5B4F3",fg="#6C3483")
grocery.place(x=340,y=180,height=380,width=325)
item8=Label(grocery,text="Butter Chicken",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=0,column=0,pady=11)
item8_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.atta).grid(row=0,column=1,padx=10)
item9=Label(grocery,text="Pasta",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=1,column=0,pady=11)
item9_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.pasta).grid(row=1,column=1,padx=10)
item10=Label(grocery,text="Basmathi Rice",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=2,column=0,pady=11)
item10_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.rice).grid(row=2,column=1,padx=10)
item11=Label(grocery,text="Paneer Masala",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=3,column=0,pady=11)
item11_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.oil).grid(row=3,column=1,padx=10)
item12=Label(grocery,text="Palak Paneer",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=4,column=0,pady=11)
item12_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.sugar).grid(row=4,column=1,padx=10)
item13=Label(grocery,text="Daal",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=5,column=0,pady=11)
item13_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.dal).grid(row=5,column=1,padx=10)
item14=Label(grocery,text="Chole Bhuture",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=6,column=0,pady=11)
item14_entry=Entry(grocery,borderwidth=2,width=15,textvariable=self.tea).grid(row=6,column=1,padx=10)
#========================================Snacks===============================================================================
hygine=LabelFrame(self.root,text="Snacks",font=("Arial Black",12),relief=GROOVE,bd=10,bg="#E5B4F3",fg="#6C3483")
hygine.place(x=677,y=180,height=380,width=325)
item15=Label(hygine,text="Noodles",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=0,column=0,pady=11)
item15_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.soap).grid(row=0,column=1,padx=10)
item16=Label(hygine,text="Aloo Tikki Chaat",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=1,column=0,pady=11)
item16_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.shampoo).grid(row=1,column=1,padx=10)
item17=Label(hygine,text="Dahi Vada",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=2,column=0,pady=11)
item17_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.lotion).grid(row=2,column=1,padx=10)
item18=Label(hygine,text="Pav Bhaji",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=3,column=0,pady=11)
item18_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.cream).grid(row=3,column=1,padx=10)
item19=Label(hygine,text="Bhel Puri",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=4,column=0,pady=11)
item19_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.foam).grid(row=4,column=1,padx=10)
item20=Label(hygine,text="Soup",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=5,column=0,pady=11)
item20_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.mask).grid(row=5,column=1,padx=10)
item21=Label(hygine,text="Pokara",font=("Arial Black",11),bg="#E5B4F3",fg="#6C3483").grid(row=6,column=0,pady=11)
item21_entry=Entry(hygine,borderwidth=2,width=15,textvariable=self.sanitizer).grid(row=6,column=1,padx=10)
#=====================================================billarea==============================================================================
billarea=Frame(self.root,bd=10,relief=GROOVE,bg="#E5B4F3")
billarea.place(x=1010,y=188,width=330,height=372)
bill_title=Label(billarea,text="Bill Area",font=("Arial Black",17),bd=7,relief=GROOVE,bg="#E5B4F3",fg="#6C3483").pack(fill=X)
scrol_y=Scrollbar(billarea,orient=VERTICAL)
self.txtarea=Text(billarea,yscrollcommand=scrol_y.set)
scrol_y.pack(side=RIGHT,fill=Y)
scrol_y.config(command=self.txtarea.yview)
self.txtarea.pack(fill=BOTH,expand=1)
#=================================================billing menu=========================================================================================
billing_menu=LabelFrame(self.root,text="Billing Summery- CodeWithCurious",font=("Arial Black",12),relief=GROOVE,bd=10,bg="#A569BD",fg="white")
billing_menu.place(x=0,y=560,relwidth=1,height=137)
total_snacks=Label(billing_menu,text="Total Snacks Price",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=0,column=0)
total_snacks_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.total_sna).grid(row=0,column=1,padx=10,pady=7)
total_grocery=Label(billing_menu,text="Total Grocery Price",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=1,column=0)
total_grocery_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.total_gro).grid(row=1,column=1,padx=10,pady=7)
total_hygine=Label(billing_menu,text="Total Beauty & Hygine Price",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=2,column=0)
total_hygine_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.total_hyg).grid(row=2,column=1,padx=10,pady=7)
tax_snacks=Label(billing_menu,text="Snacks Tax",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=0,column=2)
tax_snacks_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.a).grid(row=0,column=3,padx=10,pady=7)
tax_grocery=Label(billing_menu,text="Grocery Tax",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=1,column=2)
tax_grocery_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.b).grid(row=1,column=3,padx=10,pady=7)
tax_hygine=Label(billing_menu,text="Beauty & Hygine Tax",font=("Arial Black",11),bg="#A569BD",fg="white").grid(row=2,column=2)
tax_hygine_entry=Entry(billing_menu,width=30,borderwidth=2,textvariable=self.c).grid(row=2,column=3,padx=10,pady=7)
button_frame=Frame(billing_menu,bd=7,relief=GROOVE,bg="#6C3483")
button_frame.place(x=830,width=500,height=95)
button_total=Button(button_frame,text="Total Bill",font=("Arial Black",15),pady=10,bg="#E5B4F3",fg="#6C3483",command=lambda:total(self)).grid(row=0,column=0,padx=12)
button_clear=Button(button_frame,text="Clear Field",font=("Arial Black",15),pady=10,bg="#E5B4F3",fg="#6C3483",command=lambda:clear(self)).grid(row=0,column=1,padx=10,pady=6)
button_exit=Button(button_frame,text="Exit",font=("Arial Black",15),pady=10,bg="#E5B4F3",fg="#6C3483",width=8,command=lambda:exit1(self)).grid(row=0,column=2,padx=10,pady=6)
intro(self)
def total(self):
if (self.c_name.get=="" or self.phone.get()==""):
messagebox.showerror("Error", "Fill the complete Customer Details!!")
self.nu=self.nutella.get()*120
self.no=self.noodles.get()*40
self.la=self.lays.get()*10
self.ore=self.oreo.get()*20
self.mu=self.muffin.get()*30
self.si=self.silk.get()*60
self.na=self.namkeen.get()*15
total_snacks_price=(
self.nu+
self.no+
self.la+
self.ore+
self.mu+
self.si+
self.na)
self.total_sna.set(str(total_snacks_price)+" Rs")
self.a.set(str(round(total_snacks_price*0.05,3))+" Rs")
self.at=self.atta.get()*42
self.pa=self.pasta.get()*120
self.oi=self.oil.get()*113
self.ri=self.rice.get()*160
self.su=self.sugar.get()*55
self.te=self.tea.get()*480
self.da=self.dal.get()*76
total_grocery_price=(
self.at+
self.pa+
self.oi+
self.ri+
self.su+
self.te+
self.da)
self.total_gro.set(str(total_grocery_price)+" Rs")
self.b.set(str(round(total_grocery_price*0.01,3))+" Rs")
self.so=self.soap.get()*30
self.sh=self.shampoo.get()*180
self.cr=self.cream.get()*130
self.lo=self.lotion.get()*500
self.fo=self.foam.get()*85
self.ma=self.mask.get()*100
self.sa=self.sanitizer.get()*20
total_hygine_price=(
self.so+
self.sh+
self.cr+
self.lo+
self.fo+
self.ma+
self.sa)
self.total_hyg.set(str(total_hygine_price)+" Rs")
self.c.set(str(round(total_hygine_price*0.10,3))+" Rs")
self.total_all_bill=(total_snacks_price+
total_grocery_price+
total_hygine_price+
(round(total_grocery_price*0.01,3))+
(round(total_hygine_price*0.10,3))+
(round(total_snacks_price*0.05,3)))
self.total_all_bil=str(self.total_all_bill)+" Rs"
billarea(self)
def intro(self):
self.txtarea.delete(1.0,END)
self.txtarea.insert(END,"\tWELCOME TO SUPER MARKET\n\tPhone-No.739275410")
self.txtarea.insert(END,f"\n\nBill no. : {self.bill_no.get()}")
self.txtarea.insert(END,f"\nCustomer Name : {self.c_name.get()}")
self.txtarea.insert(END,f"\nPhone No. : {self.phone.get()}")
self.txtarea.insert(END,"\n====================================\n")
self.txtarea.insert(END,"\nProduct\t\tQty\tPrice\n")
self.txtarea.insert(END,"\n====================================\n")
def billarea(self):
intro(self)
if self.nutella.get()!=0:
self.txtarea.insert(END,f"Nutella\t\t {self.nutella.get()}\t{self.nu}\n")
if self.noodles.get()!=0:
self.txtarea.insert(END,f"Noodles\t\t {self.noodles.get()}\t{self.no}\n")
if self.lays.get()!=0:
self.txtarea.insert(END,f"Lays\t\t {self.lays.get()}\t{self.la}\n")
if self.oreo.get()!=0:
self.txtarea.insert(END,f"Oreo\t\t {self.oreo.get()}\t{self.ore}\n")
if self.muffin.get()!=0:
self.txtarea.insert(END,f"Muffins\t\t {self.muffin.get()}\t{self.mu}\n")
if self.silk.get()!=0:
self.txtarea.insert(END,f"Silk\t\t {self.silk.get()}\t{self.si}\n")
if self.namkeen.get()!=0:
self.txtarea.insert(END,f"Namkeen\t\t {self.namkeen.get()}\t{self.na}\n")
if self.atta.get()!=0:
self.txtarea.insert(END,f"Atta\t\t {self.atta.get()}\t{self.at}\n")
if self.pasta.get()!=0:
self.txtarea.insert(END,f"Pasta\t\t {self.pasta.get()}\t{self.pa}\n")
if self.rice.get()!=0:
self.txtarea.insert(END,f"Rice\t\t {self.rice.get()}\t{self.ri}\n")
if self.oil.get()!=0:
self.txtarea.insert(END,f"Oil\t\t {self.oil.get()}\t{self.oi}\n")
if self.sugar.get()!=0:
self.txtarea.insert(END,f"Sugar\t\t {self.sugar.get()}\t{self.su}\n")
if self.dal.get()!=0:
self.txtarea.insert(END,f"Daal\t\t {self.dal.get()}\t{self.da}\n")
if self.tea.get()!=0:
self.txtarea.insert(END,f"Tea\t\t {self.tea.get()}\t{self.te}\n")
if self.soap.get()!=0:
self.txtarea.insert(END,f"Soap\t\t {self.soap.get()}\t{self.so}\n")
if self.shampoo.get()!=0:
self.txtarea.insert(END,f"Shampoo\t\t {self.shampoo.get()}\t{self.sh}\n")
if self.lotion.get()!=0:
self.txtarea.insert(END,f"Lotion\t\t {self.lotion.get()}\t{self.lo}\n")
if self.cream.get()!=0:
self.txtarea.insert(END,f"Cream\t\t {self.cream.get()}\t{self.cr}\n")
if self.foam.get()!=0:
self.txtarea.insert(END,f"Foam\t\t {self.foam.get()}\t{self.fo}\n")
if self.mask.get()!=0:
self.txtarea.insert(END,f"Mask\t\t {self.mask.get()}\t{self.ma}\n")
if self.sanitizer.get()!=0:
self.txtarea.insert(END,f"Sanitizer\t\t {self.sanitizer.get()}\t{self.sa}\n")
self.txtarea.insert(END,f"------------------------------------\n")
if self.a.get()!="0.0 Rs":
self.txtarea.insert(END,f"Total Snacks Tax : {self.a.get()}\n")
if self.b.get()!="0.0 Rs":
self.txtarea.insert(END,f"Total Grocery Tax : {self.b.get()}\n")
if self.c.get()!="0.0 Rs":
self.txtarea.insert(END,f"Total Beauty&Hygine Tax : {self.c.get()}\n")
self.txtarea.insert(END,f"Total Bill Amount : {self.total_all_bil}\n")
self.txtarea.insert(END,f"------------------------------------\n")
def clear(self):
self.txtarea.delete(1.0,END)
self.nutella.set(0)
self.noodles.set(0)
self.lays.set(0)
self.oreo.set(0)
self.muffin.set(0)
self.silk.set(0)
self.namkeen.set(0)
self.atta.set(0)
self.pasta.set(0)
self.rice.set(0)
self.oil.set(0)
self.sugar.set(0)
self.dal.set(0)
self.tea.set(0)
self.soap.set(0)
self.shampoo.set(0)
self.lotion.set(0)
self.cream.set(0)
self.foam.set(0)
self.mask.set(0)
self.sanitizer.set(0)
self.total_sna.set(0)
self.total_gro.set(0)
self.total_hyg.set(0)
self.a.set(0)
self.b.set(0)
self.c.set(0)
self.c_name.set(0)
self.bill_no.set(0)
self.bill_no.set(0)
self.phone.set(0)
def exit1(self):
self.root.destroy()
root=Tk()
obj=Bill_App(root)
root.mainloop()
Output:
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