QR Code and Barcode Generator in Python (With GUI)

Download Python: https://www.python.org/downloads/

pip install pillow qrcode python-barcode

import tkinter as tk
from tkinter import messagebox
from tkinter import filedialog
from PIL import Image, ImageTk
import qrcode
import barcode
from barcode.writer import ImageWriter

qr_image = None
barcode_image = None

def generate_qr_code():
    global qr_image
    name = name_entry.get()
    roll_number = roll_number_entry.get()
    blood_group = blood_group_entry.get()
    student_class = class_entry.get()
    section = section_entry.get()
    expiry_year = expiry_year_entry.get()
    url = url_entry.get()

    if not (name and roll_number and blood_group and student_class and section and expiry_year):
        messagebox.showerror("Input Error", "All fields must be filled in.")
        return

    data = f"Name: {name}\nRoll No: {roll_number}\nBlood Group: {blood_group}\nClass: {student_class}\nSection: {section}\nExpiry Year: {expiry_year}"

    if url:
        data += f"\nURL: {url}"

    qr = qrcode.QRCode(version=1, error_correction=qrcode.constants.ERROR_CORRECT_L, box_size=10, border=4)
    qr.add_data(data)
    qr.make(fit=True)
    qr_image = qr.make_image(fill='black', back_color='white')

    display_image(qr_image)


def generate_barcode():
    global barcode_image
    roll_number = roll_number_entry.get()

    if len(roll_number) == 12:
        barcode_obj = barcode.get('upc', roll_number, writer=ImageWriter())
    elif len(roll_number) == 10:
        barcode_obj = barcode.get('ean13', roll_number.zfill(12), writer=ImageWriter())
    else:
        messagebox.showerror("Input Error", "Roll Number must be exactly 10 or 12 digits.")
        return

    barcode_image = barcode_obj.render()
    display_image(barcode_image)


def display_image(img):
    img.thumbnail((300, 300))
    img_tk = ImageTk.PhotoImage(img)
    panel.config(image=img_tk)
    panel.image = img_tk


def save_image():
    global qr_image, barcode_image

    if qr_image is None and barcode_image is None:
        messagebox.showerror("Error", "No image generated to save.")
        return

    file_path = filedialog.asksaveasfilename(defaultextension=".png", filetypes=[("PNG files", "*.png")])

    if file_path:
        if qr_image:
            qr_image.save(file_path)
            messagebox.showinfo("Saved", f"QR Code saved as {file_path}")
        elif barcode_image:
            barcode_image.save(file_path)
            messagebox.showinfo("Saved", f"Barcode saved as {file_path}")


root = tk.Tk()
root.title("QR Code and Barcode Generator")

name_entry = tk.Entry(root, width=40)
name_entry.pack()

roll_number_entry = tk.Entry(root, width=40)
roll_number_entry.pack()

blood_group_entry = tk.Entry(root, width=40)
blood_group_entry.pack()

class_entry = tk.Entry(root, width=40)
class_entry.pack()

section_entry = tk.Entry(root, width=40)
section_entry.pack()

expiry_year_entry = tk.Entry(root, width=40)
expiry_year_entry.pack()

url_entry = tk.Entry(root, width=40)
url_entry.pack()

tk.Button(root, text="Generate QR Code", command=generate_qr_code).pack()
tk.Button(root, text="Generate Barcode", command=generate_barcode).pack()
tk.Button(root, text="Save Image", command=save_image).pack()

panel = tk.Label(root)
panel.pack()

root.mainloop()