What is a Billing System Project in Python?

The Billing System Project in Python is made to keep track of time and bills, as well as send out invoices for services and products.

It makes it easy for business owners to keep track of many invoices and accounts with just a few clicks of the mouse.

It helps run a chain of stores and a billing system for more than one company.

It also gives businesses a way to bill for recurring services and rentals.

Billing Software using Python

Project Name:	Billing System Project in Python With Source Code
Abstract	Billing System in Python is an easy Python undertaking for novices from which they can discover ways to develop Python language projects.
Language/s Used:	Python Programming
Python version (Recommended):	3.8 or 3.9
Database:	None
Type:	Python Tkinter Desktop Application
Developer:	IT SOURCECODE
Updates:	0

About the Billing System Project

Billing System Project in Python is an easy Python undertaking for novices from which they can discover ways to develop Python language projects.

This pharmacy billing system can be extremely useful for every one of those understudies, programmer, software program engineers, and Python learner students to discover how the code executes and work inside the program.

Similarly, the pharmacy billing system project will train the method of different statistics structure which has been utilized as part of the program.

Lastly, because the program consists of high-quality clarification in each development it’s going to help every one of these college students who discover hassle in Python.

Aside from this Pharmacy Billing System, I have another example of the Hotel Billing System Project in Python to improve your billing system project.

Before we proceed, watch the video here.

Simple Billing Program in Python

In this tutorial, I will educate you on how to establish a Simple Billing Program In Python, this tutorial consists of the downloadable billing system project in Python where in you alter it to fit your patron requirements.

Before you start to create a Billing System Project In Python, make sure you have PyCharm IDE and installed Python on your computer.

By the way, if you are new to Python programming and don’t know what Python IDE to use, I have here a list of the Best Python IDE for Windows, Linux, and Mac OS that will suit you.

I also have here How to Download and Install the Latest Version of Python on Windows.

Steps on How To Create Billing System Project in Python

Python Billing System Project Code Explanation

1. Declaring Class, Module and Variables

The code given below declares the class, module, and variable.

You are free to copy and paste this code on your Python File.

class Pharmacy_Billing(object):

def __init__(self, root):
self.root = root
self.root.maxsize(width=1370, height=720)
self.root.minsize(width=1370, height=720)
self.root.title("Pharmacy Billing System")

# this function for variables
self.customer_name = StringVar()
self.customer_contact_number = StringVar()

# this function for Generating Random Invoice Numbers
x = random.randint(1, 9999)
self.cus_invoice_no = StringVar()

# this fucntion is to Set Value to a variable
self.cus_invoice_no.set(str(x))
self.medicol_advance = IntVar()
self.toseran_forte = IntVar()
self.imodium = IntVar()
self.mefenamic = IntVar()
self.amoxicillin = IntVar()
self.tiki_tiki_star = IntVar()
self.neutrilin_drops = IntVar()
self.profan_tlc = IntVar()
self.ceelin_plus = IntVar()
self.cheriper = IntVar()
self.lidocaine_ointment = IntVar()
self.canesten_cream = IntVar()
self.tabeta_ointment = IntVar()
self.nerisone_ointment = IntVar()
self.clotrimazole_cream = IntVar()
self.total_medicine = StringVar()
self.total_vitamins = StringVar()
self.total_cream_ointment = StringVar()
self.tax_medicine = StringVar()
self.tax_vitamins = StringVar()
self.tax_cream_ointment = StringVar()

2. Declaring GUI using Tkinter

This module is to pop up the GUI using TKinter.

root = Tk()
object = Pharmacy_Billing(root)
root.mainloop()

3. Font and Background Color

This module is for the fonts and background color of the Pharmacy billing System GUI.

bg_color = "#000000"
fg_color = "red"
lbl_color = 'red'

4. Frame Design Function

This module is for the frame design function.

# This function for title frame
title = Label(self.root, text="Pharmacy Billing System", bd=12, relief=RAISED, fg=fg_color, bg=bg_color,
font=("Calibri", 36, "bold"), pady=3).pack(fill=X)

# This function for Customers Frame
F1 = LabelFrame(text="Customer Information", font=("Calibri", 12, "bold"), fg="gold", bg=bg_color,
relief=RAISED, bd=10)
F1.place(x=0, y=80, relwidth=1)

# This function for Medicine Capsule Frame
F2 = LabelFrame(self.root, text='Medicine Capsule', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibri", 13, "bold"))
F2.place(x=5, y=180, width=325, height=380)

# This function for Vitamins Frame
F2 = LabelFrame(self.root, text='Vitamins', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibre", 13, "bold"))
F2.place(x=330, y=180, width=325, height=380)

# This function for Cream and Ointment
F2 = LabelFrame(self.root, text='Cream and Ointment', bd=10, relief=RAISED, bg=bg_color, fg="gold", font=("Calibre", 13, "bold"))
F2.place(x=655, y=180, width=325, height=380)

# This function for Reciept Area frames
F3 = Label(self.root, bd=10, relief=RAISED)
F3.place(x=1010, y=180, width=350, height=350)

receipt_title = Label(F3, text="Receipt Area", font=("Lucida", 13, "bold"), bd=7, relief=RAISED)
receipt_title.pack(fill=X)

#This function for Scroll bar Button frames
scroll_y = Scrollbar(F3, orient=VERTICAL)
self.txt = Text(F3, yscrollcommand=scroll_y.set)
scroll_y.pack(side=RIGHT, fill=Y)
scroll_y.config(command=self.txt.yview)
self.txt.pack(fill=BOTH, expand=1)

# This function for Buttons Frame
F4 = LabelFrame(self.root, text='Total Menu', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibri", 13, "bold"))
F4.place(x=0, y=560, relwidth=1, height=145)

5. Medicines Inventory Module

This module is for the total medicines and buttons used in the system.

# This function for Total Medicine
medicine_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Medicine")
medicine_lbl.grid(row=0, column=0, padx=10, pady=0)
medicine_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_medicine)
medicine_en.grid(row=0, column=1, ipady=2, ipadx=5)

# This function for Total Vitamins
vitamins_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Vitamins")
vitamins_lbl.grid(row=1, column=0, padx=10, pady=5)
vitamins_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_vitamins)
vitamins_en.grid(row=1, column=1, ipady=2, ipadx=5)

# This function for Total cream and ointment
cream_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Cream and Ointment")
cream_lbl.grid(row=2, column=0, padx=10, pady=5)
cream_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_cream_ointment)
cream_en.grid(row=2, column=1, ipady=2, ipadx=5)

#This function for Tax Medicine
taxmedicine_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Medicine Tax")
taxmedicine_lbl.grid(row=0, column=2, padx=30, pady=0)
taxmedicine_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_medicine)
taxmedicine_en.grid(row=0, column=3, ipady=2, ipadx=5)

# This function for tax Vitamins
vitamins_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Vitamins Tax")
vitamins_lbl.grid(row=1, column=2, padx=30, pady=5)
vitamins_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_vitamins)
vitamins_en.grid(row=1, column=3, ipady=2, ipadx=5)

# This function for Tax Cream and Ointment
ointment_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Cream and Ointment Tax")
ointment_lbl.grid(row=2, column=2, padx=10, pady=5)
ointment_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_cream_ointment)
ointment_en.grid(row=2, column=3, ipady=2, ipadx=5)

# This function for Total Button
total_btn = Button(F4, text="Total", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED,
command=self.total_section)
total_btn.grid(row=1, column=4, ipadx=20, padx=30)

# This function for Generate Bill
generatebill_button = Button(F4, text="Generate Bill", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.billing_section)
generatebill_button.grid(row=1, column=5, ipadx=20)

# This function for Clear Button
clear_button = Button(F4, text="Clear", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.clear)
clear_button.grid(row=1, column=6, ipadx=20, padx=30)

# This function for Exit Button
exit_buttonn = Button(F4, text="Exit", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.exit)
exit_buttonn.grid(row=1, column=7, ipadx=20)

6. Customer Information

This module is for the customer information and for invoice numbers.

# This function for customer name
customername_lbl = Label(F1, text="Customer Name", bg=bg_color, fg=fg_color,
font=("Calibri", 15, "bold")).grid(row=0, column=0, padx=10, pady=5)
customername_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.customer_name)
customername_en.grid(row=0, column=1, ipady=4, ipadx=30, pady=5)

# This function for customer contact number
customercontact_lbl = Label(F1, text="Phone No", bg=bg_color, fg=fg_color, font=("Calibri", 15, "bold")).grid(
row=0, column=2, padx=20)
customercontact_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.customer_contact_number)
customercontact_en.grid(row=0, column=3, ipady=4, ipadx=30, pady=5)

# This fucntion for Invoice Number
customerinvoice_lbl = Label(F1, text="Invoice No.", bg=bg_color, fg=fg_color, font=("Calibri", 15, "bold"))
customerinvoice_lbl.grid(row=0, column=4, padx=20)
customerinvoice_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.cus_invoice_no)
customerinvoice_en.grid(row=0, column=5, ipadx=30, ipady=4, pady=5)

#This function for Invoice Search Button
invoice_btn = Button(F1, text="Enter", bd=7, relief=RAISED, font=("Calibri", 12, "bold"), bg=bg_color,
fg=fg_color)
invoice_btn.grid(row=0, column=6, ipady=5, padx=60, ipadx=19, pady=5)

7. Medicine Information’s

This module is for medical information.

# This function for Medicol Advance
medicol_advance_lbl = Label(F2, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Medicol Advance")
medicol_advance_lbl.grid(row=0, column=0, padx=10, pady=20)
medicol_advance_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.medicol_advance)
medicol_advance_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Toseran Forte
toseran_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Toseran Forte")
toseran_lbl.grid(row=1, column=0, padx=10, pady=20)
toseran_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.toseran_forte)
toseran_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Imodium
imodium_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Imodium")
imodium_lbl.grid(row=2, column=0, padx=10, pady=20)
imodium_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.imodium)
imodium_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Mefenamic
mefenamic_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Mefenamic")
mefenamic_lbl.grid(row=3, column=0, padx=10, pady=20)
mefenamic_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.mefenamic)
mefenamic_en.grid(row=3, column=1, ipady=5, ipadx=5)

# This function for Amoxicillin
amoxicillin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Amoxicillin")
amoxicillin_lbl.grid(row=4, column=0, padx=10, pady=20)
amoxicillin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.amoxicillin)
amoxicillin_en.grid(row=4, column=1, ipady=5, ipadx=5)

This module is for vitamins label.

# This function for Tiki tiki Star
tikitiki_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Tiki Tiki Star")
tikitiki_lbl.grid(row=0, column=0, padx=10, pady=20)
tikitiki_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.tiki_tiki_star)
tikitiki_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Neutrilin Drops
neutrilin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Neutrilin Drops")
neutrilin_lbl.grid(row=4, column=0, padx=10, pady=20)
neutrilin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.neutrilin_drops)
neutrilin_en.grid(row=4, column=1, ipady=5, ipadx=5)

# This function for Profan Tlc
profan_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Profan Tlc")
profan_lbl.grid(row=1, column=0, padx=10, pady=20)
profan_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.profan_tlc)
profan_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Ceelin PLus
ceelin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Ceelin Plus")
ceelin_lbl.grid(row=2, column=0, padx=10, pady=20)
ceelin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.ceelin_plus)
ceelin_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Cheriper
cheriper_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Cheriper")
cheriper_lbl.grid(row=3, column=0, padx=10, pady=20)
cheriper_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.cheriper)
cheriper_en.grid(row=3, column=1, ipady=5, ipadx=5)

This module is for the cream and ointment label.

# This function for Lidocaine Ointment
licodaine_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Lidocaine Ointment")
licodaine_lbl.grid(row=0, column=0, padx=10, pady=20)
licodaine_en = Entry(F2, bd=10, relief=RAISED, textvariable=self.lidocaine_ointment)
licodaine_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Canesten Cream
canesten_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Canesten Cream")
canesten_lbl.grid(row=1, column=0, padx=10, pady=20)
canesten_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.canesten_cream)
canesten_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Tabeta Ointment
tabeta_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Tabeta Ointment")
tabeta_lbl.grid(row=2, column=0, padx=10, pady=20)
tabeta_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.tabeta_ointment)
tabeta_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Nerizone Ointemnt
nerizone_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Nerizone Ointemnt")
nerizone_lbl.grid(row=3, column=0, padx=10, pady=20)
nerizone_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.nerisone_ointment)
nerizone_en.grid(row=3, column=1, ipady=5, ipadx=5)

# This function for CLotrimazole Cream
clotrimazole_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="CLotrimazole Cream")
clotrimazole_lbl.grid(row=4, column=0, padx=10, pady=20)
clotrimazole_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.clotrimazole_cream)
clotrimazole_en.grid(row=4, column=1, ipady=5, ipadx=5)

8. Get Total Order

This module is for getting total prices.

def total_section(self):
self.total_medicine_prices = (
(self.medicol_advance.get() * 12) +
(self.toseran_forte.get() * 12) +
(self.imodium.get() * 15) +
(self.mefenamic.get() * 38) +
(self.amoxicillin.get() * 5)
)
self.total_medicine.set("P " + str(self.total_medicine_prices))
self.tax_medicine.set("P " + str(round(self.total_medicine_prices * 0.05)))

self.total_vitamins_prices = (
(self.tiki_tiki_star.get() * 150) +
(self.neutrilin_drops.get() * 250) +
(self.profan_tlc.get() * 350) +
(self.ceelin_plus.get() * 250) +
(self.cheriper.get() * 400)

)
self.total_vitamins.set("P " + str(self.total_vitamins_prices))
self.tax_vitamins.set("P " + str(round(self.total_vitamins_prices * 0.05)))

self.total_cream_ointment_prices = (
(self.lidocaine_ointment.get() * 340) +
(self.canesten_cream.get() * 450) +
(self.tabeta_ointment.get() * 420) +
(self.nerisone_ointment.get() * 580) +
(self.clotrimazole_cream.get() * 600)
)
self.total_cream_ointment.set("P " + str(self.total_cream_ointment_prices))
self.tax_cream_ointment.set("P " + str(round(self.total_cream_ointment_prices * 0.05)))

9. Generate Receipt

This module is for the receipt area.

def welcome_customer(self):
    self.txt.delete('1.0', END)
    self.txt.insert(END, "Welcome To Eter Pharmacy Store\n")
    self.txt.insert(END, f"\nInvoice No. : {str(self.cus_invoice_no.get())}")
    self.txt.insert(END, f"\nCustomer Name : {str(self.customer_name.get())}")
    self.txt.insert(END, f"\nContact No. : {str(self.customer_contact_number.get())}")
    self.txt.insert(END, "\nProduct:       Quantity:     Price:")
    self.txt.insert(END, "\n___________________________________")

This module is to clear receipt area.

def clear(self):
self.txt.delete('1.0', END)

10. Report Module

This module is for product name, quantity, and price to bill section.

def billing_section(self):
self.welcome_customer()
if self.medicol_advance.get() != 0:
self.txt.insert(END, f"\nMedicol Advance {self.medicol_advance.get()} {self.medicol_advance.get() * 12}")
if self.toseran_forte.get() != 0:
self.txt.insert(END, f"\nToseran Forte {self.toseran_forte.get()} {self.toseran_forte.get() * 12}")
if self.imodium.get() != 0:
self.txt.insert(END, f"\nImodium {self.imodium.get()} {self.imodium.get() * 15}")
if self.mefenamic.get() != 0:
self.txt.insert(END, f"\nMefenamic {self.mefenamic.get()} {self.mefenamic.get() * 38}")
if self.amoxicillin.get() != 0:
self.txt.insert(END,
f"\nAmoxicillin {self.amoxicillin.get()} {self.amoxicillin.get() * 5}")
if self.tiki_tiki_star.get() != 0:
self.txt.insert(END, f"\nTiki Tiki Star {self.tiki_tiki_star.get()} {self.tiki_tiki_star.get() * 150}")
if self.neutrilin_drops.get() != 0:
self.txt.insert(END, f"\nNeutrilin Drops {self.neutrilin_drops.get()} {self.neutrilin_drops.get() * 250}")
if self.profan_tlc.get() != 0:
self.txt.insert(END, f"\nProfan Tlc {self.profan_tlc.get()} {self.profan_tlc.get() * 350}")
if self.ceelin_plus.get() != 0:
self.txt.insert(END, f"\nCeelin Plus {self.ceelin_plus.get()} {self.ceelin_plus.get() * 250}")
if self.cheriper.get() != 0:
self.txt.insert(END, f"\nCheriper {self.cheriper.get()} {self.cheriper.get() * 400}")
if self.lidocaine_ointment.get() != 0:
self.txt.insert(END, f"\nLicodaine Ointment {self.lidocaine_ointment.get()} {self.lidocaine_ointment.get() * 340}")
if self.canesten_cream.get() != 0:
self.txt.insert(END, f"\nCanesten Cream {self.canesten_cream.get()} {self.canesten_cream.get() * 450}")
if self.tabeta_ointment.get() != 0:
self.txt.insert(END, f"\nTabeta Ointment {self.tabeta_ointment.get()} {self.tabeta_ointment.get() * 420}")
if self.nerisone_ointment.get() != 0:
self.txt.insert(END, f"\nNerizone Ointment {self.nerisone_ointment.get()} {self.nerisone_ointment.get() * 580}")
if self.clotrimazole_cream.get() != 0:
self.txt.insert(END, f"\nClotrimazole Cream {self.clotrimazole_cream.get()} {self.clotrimazole_cream.get() * 20}")
self.txt.insert(END, "\n___________________________________")
self.txt.insert(END,
f"\n Total : {self.total_medicine_prices + self.total_vitamins_prices + self.total_cream_ointment_prices + self.total_medicine_prices * 0.05 + self.total_vitamins_prices * 0.05 + self.total_cream_ointment_prices * 0.05}")

11. Exit

This module is exit.

def exit(self):
self.root.destroy()

12. Complete the Source Code of Billing System Project In Python

You are free to copy and execute this Pharmacy Billing System Project In Python on your computer.

import random
from tkinter import *
root = Tk()

class Pharmacy_Billing(object):

def __init__(self, root):
self.root = root
self.root.maxsize(width=1370, height=720)
self.root.minsize(width=1370, height=720)
self.root.title("Pharmacy Billing System")

# this function for variables
self.customer_name = StringVar()
self.customer_contact_number = StringVar()

# this function for Generating Random Invoice Numbers
x = random.randint(1, 9999)
self.cus_invoice_no = StringVar()

# this fucntion is to Set Value to a variable
self.cus_invoice_no.set(str(x))
self.medicol_advance = IntVar()
self.toseran_forte = IntVar()
self.imodium = IntVar()
self.mefenamic = IntVar()
self.amoxicillin = IntVar()
self.tiki_tiki_star = IntVar()
self.neutrilin_drops = IntVar()
self.profan_tlc = IntVar()
self.ceelin_plus = IntVar()
self.cheriper = IntVar()
self.lidocaine_ointment = IntVar()
self.canesten_cream = IntVar()
self.tabeta_ointment = IntVar()
self.nerisone_ointment = IntVar()
self.clotrimazole_cream = IntVar()
self.total_medicine = StringVar()
self.total_vitamins = StringVar()
self.total_cream_ointment = StringVar()
self.tax_medicine = StringVar()
self.tax_vitamins = StringVar()
self.tax_cream_ointment = StringVar()

bg_color = "#000000"
fg_color = "red"
lbl_color = 'red'

# This function for title frame
title = Label(self.root, text="Pharmacy Billing System", bd=12, relief=RAISED, fg=fg_color, bg=bg_color,
font=("Calibri", 36, "bold"), pady=3).pack(fill=X)

# This function for Customers Frame
F1 = LabelFrame(text="Customer Information", font=("Calibri", 12, "bold"), fg="gold", bg=bg_color,
relief=RAISED, bd=10)
F1.place(x=0, y=80, relwidth=1)

# This function for customer name
customername_lbl = Label(F1, text="Customer Name", bg=bg_color, fg=fg_color,
font=("Calibri", 15, "bold")).grid(row=0, column=0, padx=10, pady=5)
customername_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.customer_name)
customername_en.grid(row=0, column=1, ipady=4, ipadx=30, pady=5)

# This function for customer contact number
customercontact_lbl = Label(F1, text="Phone No", bg=bg_color, fg=fg_color, font=("Calibri", 15, "bold")).grid(
row=0, column=2, padx=20)
customercontact_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.customer_contact_number)
customercontact_en.grid(row=0, column=3, ipady=4, ipadx=30, pady=5)

# This fucntion for Invoice Number
customerinvoice_lbl = Label(F1, text="Invoice No.", bg=bg_color, fg=fg_color, font=("Calibri", 15, "bold"))
customerinvoice_lbl.grid(row=0, column=4, padx=20)
customerinvoice_en = Entry(F1, bd=8, relief=RAISED, textvariable=self.cus_invoice_no)
customerinvoice_en.grid(row=0, column=5, ipadx=30, ipady=4, pady=5)

# This function for Invoice Search Button
invoice_btn = Button(F1, text="Enter", bd=7, relief=RAISED, font=("Calibri", 12, "bold"), bg=bg_color,
fg=fg_color)
invoice_btn.grid(row=0, column=6, ipady=5, padx=60, ipadx=19, pady=5)

# This function for Medicine Capsule Frame
F2 = LabelFrame(self.root, text='Medicine Capsule', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibri", 13, "bold"))
F2.place(x=5, y=180, width=325, height=380)

# This function for Medicol Advance
medicol_advance_lbl = Label(F2, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Medicol Advance")
medicol_advance_lbl.grid(row=0, column=0, padx=10, pady=20)
medicol_advance_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.medicol_advance)
medicol_advance_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Toseran Forte
toseran_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Toseran Forte")
toseran_lbl.grid(row=1, column=0, padx=10, pady=20)
toseran_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.toseran_forte)
toseran_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Imodium
imodium_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Imodium")
imodium_lbl.grid(row=2, column=0, padx=10, pady=20)
imodium_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.imodium)
imodium_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Mefenamic
mefenamic_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Mefenamic")
mefenamic_lbl.grid(row=3, column=0, padx=10, pady=20)
mefenamic_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.mefenamic)
mefenamic_en.grid(row=3, column=1, ipady=5, ipadx=5)

# This function for Amoxicillin
amoxicillin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Amoxicillin")
amoxicillin_lbl.grid(row=4, column=0, padx=10, pady=20)
amoxicillin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.amoxicillin)
amoxicillin_en.grid(row=4, column=1, ipady=5, ipadx=5)

# This function for Vitamins Frame
F2 = LabelFrame(self.root, text='Vitamins', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibre", 13, "bold"))
F2.place(x=330, y=180, width=325, height=380)

# This function for Tiki tiki Star
tikitiki_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Tiki Tiki Star")
tikitiki_lbl.grid(row=0, column=0, padx=10, pady=20)
tikitiki_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.tiki_tiki_star)
tikitiki_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Neutrilin Drops
neutrilin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Neutrilin Drops")
neutrilin_lbl.grid(row=4, column=0, padx=10, pady=20)
neutrilin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.neutrilin_drops)
neutrilin_en.grid(row=4, column=1, ipady=5, ipadx=5)

# This function for Profan Tlc
profan_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Profan Tlc")
profan_lbl.grid(row=1, column=0, padx=10, pady=20)
profan_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.profan_tlc)
profan_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Ceelin PLus
ceelin_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Ceelin Plus")
ceelin_lbl.grid(row=2, column=0, padx=10, pady=20)
ceelin_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.ceelin_plus)
ceelin_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Cheriper
cheriper_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Cheriper")
cheriper_lbl.grid(row=3, column=0, padx=10, pady=20)
cheriper_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.cheriper)
cheriper_en.grid(row=3, column=1, ipady=5, ipadx=5)



# This function for Cream and Ointment
F2 = LabelFrame(self.root, text='Cream and Ointment', bd=10, relief=RAISED, bg=bg_color, fg="gold", font=("Calibre", 13, "bold"))
F2.place(x=655, y=180, width=325, height=380)

# This function for Lidocaine Ointment
licodaine_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Lidocaine Ointment")
licodaine_lbl.grid(row=0, column=0, padx=10, pady=20)
licodaine_en = Entry(F2, bd=10, relief=RAISED, textvariable=self.lidocaine_ointment)
licodaine_en.grid(row=0, column=1, ipady=5, ipadx=5)

# This function for Canesten Cream
canesten_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Canesten Cream")
canesten_lbl.grid(row=1, column=0, padx=10, pady=20)
canesten_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.canesten_cream)
canesten_en.grid(row=1, column=1, ipady=5, ipadx=5)

# This function for Tabeta Ointment
tabeta_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Tabeta Ointment")
tabeta_lbl.grid(row=2, column=0, padx=10, pady=20)
tabeta_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.tabeta_ointment)
tabeta_en.grid(row=2, column=1, ipady=5, ipadx=5)

# This function for Nerizone Ointemnt
nerizone_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="Nerizone Ointemnt")
nerizone_lbl.grid(row=3, column=0, padx=10, pady=20)
nerizone_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.nerisone_ointment)
nerizone_en.grid(row=3, column=1, ipady=5, ipadx=5)

# This function for CLotrimazole Cream
clotrimazole_lbl = Label(F2, font=("Calibre", 15, "bold"), fg=lbl_color, bg=bg_color, text="CLotrimazole Cream")
clotrimazole_lbl.grid(row=4, column=0, padx=10, pady=20)
clotrimazole_en = Entry(F2, bd=8, relief=RAISED, textvariable=self.clotrimazole_cream)
clotrimazole_en.grid(row=4, column=1, ipady=5, ipadx=5)

# This function for Reciept Area frames
F3 = Label(self.root, bd=10, relief=RAISED)
F3.place(x=1010, y=180, width=350, height=350)
# ===========
receipt_title = Label(F3, text="Receipt Area", font=("Lucida", 13, "bold"), bd=7, relief=RAISED)
receipt_title.pack(fill=X)

#This function for Scroll bar Button frames
scroll_y = Scrollbar(F3, orient=VERTICAL)
self.txt = Text(F3, yscrollcommand=scroll_y.set)
scroll_y.pack(side=RIGHT, fill=Y)
scroll_y.config(command=self.txt.yview)
self.txt.pack(fill=BOTH, expand=1)

# This function for Buttons Frame
F4 = LabelFrame(self.root, text='Total Menu', bd=10, relief=RAISED, bg=bg_color, fg="gold",
font=("Calibri", 13, "bold"))
F4.place(x=0, y=560, relwidth=1, height=145)

# This function for Total Medicine
medicine_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Medicine")
medicine_lbl.grid(row=0, column=0, padx=10, pady=0)
medicine_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_medicine)
medicine_en.grid(row=0, column=1, ipady=2, ipadx=5)

# This function for Total Vitamins
vitamins_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Vitamins")
vitamins_lbl.grid(row=1, column=0, padx=10, pady=5)
vitamins_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_vitamins)
vitamins_en.grid(row=1, column=1, ipady=2, ipadx=5)

# This function for Total cream and ointment
cream_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Total Cream and Ointment")
cream_lbl.grid(row=2, column=0, padx=10, pady=5)
cream_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.total_cream_ointment)
cream_en.grid(row=2, column=1, ipady=2, ipadx=5)

#This function for Tax Medicine
taxmedicine_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Medicine Tax")
taxmedicine_lbl.grid(row=0, column=2, padx=30, pady=0)
taxmedicine_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_medicine)
taxmedicine_en.grid(row=0, column=3, ipady=2, ipadx=5)

# This function for tax Vitamins
vitamins_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Vitamins Tax")
vitamins_lbl.grid(row=1, column=2, padx=30, pady=5)
vitamins_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_vitamins)
vitamins_en.grid(row=1, column=3, ipady=2, ipadx=5)

# This function for Tax Cream and Ointment
ointment_lbl = Label(F4, font=("Calibri", 15, "bold"), fg=lbl_color, bg=bg_color, text="Cream and Ointment Tax")
ointment_lbl.grid(row=2, column=2, padx=10, pady=5)
ointment_en = Entry(F4, bd=8, relief=RAISED, textvariable=self.tax_cream_ointment)
ointment_en.grid(row=2, column=3, ipady=2, ipadx=5)

# This function for Total Button
total_btn = Button(F4, text="Total", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED,
command=self.total_section)
total_btn.grid(row=1, column=4, ipadx=20, padx=30)

# This function for Generate Bill
generatebill_button = Button(F4, text="Generate Bill", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.billing_section)
generatebill_button.grid(row=1, column=5, ipadx=20)

# This function for Clear Button
clear_button = Button(F4, text="Clear", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.clear)
clear_button.grid(row=1, column=6, ipadx=20, padx=30)

# This function for Exit Button
exit_buttonn = Button(F4, text="Exit", bg=bg_color, fg=fg_color, font=("lucida", 12, "bold"), bd=7, relief=RAISED, command=self.exit)
exit_buttonn.grid(row=1, column=7, ipadx=20)

# This function for to get total prices

def total_section(self):
self.total_medicine_prices = (
(self.medicol_advance.get() * 12) +
(self.toseran_forte.get() * 12) +
(self.imodium.get() * 15) +
(self.mefenamic.get() * 38) +
(self.amoxicillin.get() * 5)
)
self.total_medicine.set("Rs. " + str(self.total_medicine_prices))
self.tax_medicine.set("Rs. " + str(round(self.total_medicine_prices * 0.05)))

self.total_vitamins_prices = (
(self.tiki_tiki_star.get() * 150) +
(self.neutrilin_drops.get() * 250) +
(self.profan_tlc.get() * 350) +
(self.ceelin_plus.get() * 250) +
(self.cheriper.get() * 400)

)
self.total_vitamins.set("Rs. " + str(self.total_vitamins_prices))
self.tax_vitamins.set("Rs. " + str(round(self.total_vitamins_prices * 0.05)))

self.total_cream_ointment_prices = (
(self.lidocaine_ointment.get() * 340) +
(self.canesten_cream.get() * 450) +
(self.tabeta_ointment.get() * 420) +
(self.nerisone_ointment.get() * 580) +
(self.clotrimazole_cream.get() * 600)
)
self.total_cream_ointment.set("Rs. " + str(self.total_cream_ointment_prices))
self.tax_cream_ointment.set("Rs. " + str(round(self.total_cream_ointment_prices * 0.05)))

def welcome_customer(self):
self.txt.delete('1.0', END)
self.txt.insert(END, "Welcome To Eter Pharmacy Store\n")
self.txt.insert(END, f"\nInvoice No. : {str(self.cus_invoice_no.get())}")
self.txt.insert(END, f"\nCustomer Name : {str(self.customer_name.get())}")
self.txt.insert(END, f"\nContact No. : {str(self.customer_contact_number.get())}")
self.txt.insert(END, "\nProduct: Quantity: Price:")
self.txt.insert(END, "\n___________________________________")

# Function to clear the receipt area

def clear(self):
self.txt.delete('1.0', END)

# This function for Add Product name , qty and price to bill section

def billing_section(self):
self.welcome_customer()
if self.medicol_advance.get() != 0:
self.txt.insert(END, f"\nMedicol Advance {self.medicol_advance.get()} {self.medicol_advance.get() * 12}")
if self.toseran_forte.get() != 0:
self.txt.insert(END, f"\nToseran Forte {self.toseran_forte.get()} {self.toseran_forte.get() * 12}")
if self.imodium.get() != 0:
self.txt.insert(END, f"\nImodium {self.imodium.get()} {self.imodium.get() * 15}")
if self.mefenamic.get() != 0:
self.txt.insert(END, f"\nMefenamic {self.mefenamic.get()} {self.mefenamic.get() * 38}")
if self.amoxicillin.get() != 0:
self.txt.insert(END,
f"\nAmoxicillin {self.amoxicillin.get()} {self.amoxicillin.get() * 5}")
if self.tiki_tiki_star.get() != 0:
self.txt.insert(END, f"\nTiki Tiki Star {self.tiki_tiki_star.get()} {self.tiki_tiki_star.get() * 150}")
if self.neutrilin_drops.get() != 0:
self.txt.insert(END, f"\nNeutrilin Drops {self.neutrilin_drops.get()} {self.neutrilin_drops.get() * 250}")
if self.profan_tlc.get() != 0:
self.txt.insert(END, f"\nProfan Tlc {self.profan_tlc.get()} {self.profan_tlc.get() * 350}")
if self.ceelin_plus.get() != 0:
self.txt.insert(END, f"\nCeelin Plus {self.ceelin_plus.get()} {self.ceelin_plus.get() * 250}")
if self.cheriper.get() != 0:
self.txt.insert(END, f"\nCheriper {self.cheriper.get()} {self.cheriper.get() * 400}")
if self.lidocaine_ointment.get() != 0:
self.txt.insert(END, f"\nLicodaine Ointment {self.lidocaine_ointment.get()} {self.lidocaine_ointment.get() * 340}")
if self.canesten_cream.get() != 0:
self.txt.insert(END, f"\nCanesten Cream {self.canesten_cream.get()} {self.canesten_cream.get() * 450}")
if self.tabeta_ointment.get() != 0:
self.txt.insert(END, f"\nTabeta Ointment {self.tabeta_ointment.get()} {self.tabeta_ointment.get() * 420}")
if self.nerisone_ointment.get() != 0:
self.txt.insert(END, f"\nNerizone Ointment {self.nerisone_ointment.get()} {self.nerisone_ointment.get() * 580}")
if self.clotrimazole_cream.get() != 0:
self.txt.insert(END, f"\nClotrimazole Cream {self.clotrimazole_cream.get()} {self.clotrimazole_cream.get() * 20}")
self.txt.insert(END, "\n___________________________________")
self.txt.insert(END,
f"\n Total : {self.total_medicine_prices + self.total_vitamins_prices + self.total_cream_ointment_prices + self.total_medicine_prices * 0.05 + self.total_vitamins_prices * 0.05 + self.total_cream_ointment_prices * 0.05}")

# Function to exit

def exit(self):
self.root.destroy()


object = Pharmacy_Billing(root)
root.mainloop()

Billing System Project Output:

How To Run a Billing System Project?

To run this project, you must have installed a Pycharm on your PC (for Windows). This Billing System Project with source code is free to download and use for educational purposes only!

After clicking the download button and finished downloading the project you must follow the steps below:

Step 1: Unzip the file or Extract the file.

Step 2: Double-click the pharmaBill.

Step 3: The project is ready to run.

Downloadable Source Code

I have here the list of Best Python Projects with Source code free to download for free, I hope this can help you a lot.

Conclusion

Billing System is an easy mission developed in Python. This Project handiest consists of a Python Script (pharmaBill.py).

This is a simple GUI-primarily based utility and Very easy to use.

The Pharmacy Billing System uses the Tkinter module for GUI. The task report carries a Python script (pharmaBill.Py).

This is an easy GUI primarily based application that is very smooth to recognize and use. It makes use of the Tkinter module for the GUI.

Talking approximately the utility, the user just has to select some of the medicine, vitamins, and ointment items, enter the quantity and click on the full button to view the full price.

This easy software also displays the whole expenses of every item with tax and without additional charges.

Inquiries

If you have any questions or suggestions about the Billing System Project In Python with Source Code, please feel free to leave a comment below.

Quick step-by-step summary (click to expand)

1. Set up your Python environment. Install Python 3.10+, VS Code or PyCharm, and required libraries (Tkinter is built-in on Windows/macOS).
2. Design the product and transaction data model. Create tables for products (name, price, stock) and transactions (items, subtotal, tax, total). Use a simple dictionary for beginners or SQLite for persistent storage.
3. Build the Tkinter user interface. Create the main window with product entry fields, quantity input, and a running total display. Add buttons for Add Item, Remove Item, and Generate Bill.
4. Implement billing calculation logic. Write the functions to calculate subtotals, apply tax rates, apply discounts, and compute the final total. Handle edge cases like zero quantity and out-of-stock items.
5. Add receipt generation. Format the final bill as a printable receipt showing items, quantities, prices, subtotal, tax, and total. Optionally use ReportLab to save as PDF.