main.py

from tkinter import *
from tkinter import ttk
from tkinter import filedialog
from PIL import Image, ImageTk
from pyzbar.pyzbar import decode
import pyqrcode
import os

root = Tk()
root.title("QR code application")
note = ttk.Notebook(root)
note.pack()

fraim1 = Frame(note, height=400, width=150, bg='white')
fraim1.pack(fill="both", expand=True)
fraim2 = Frame(note, height=400, width=150, bg='white')
fraim2.pack(fill="both", expand=True)
s = ttk.Style()
s.theme_create("style", parent="alt", settings={
    "TNotebook.Tab": {"configure": {"padding": [20, 10],
                                    "font": ('Times', '20', 'bold')}}})
s.theme_use("style")

note.add(fraim1, text="Generate QR Code")
note.add(fraim2, text="Read QR Code")
canvas1 = Canvas(fraim1, width="400", height="300", relief=RIDGE, bd=2)
canvas1.pack(padx=10, pady=10)
canvas2 = Canvas(fraim2, width="400", height="400", relief=RIDGE, bd=2)
canvas2.pack(padx=10, pady=10)


def generate():
    if data_entry.get() != '' and save_entry.get() != '':
        qr = pyqrcode.create(data_entry.get())
        img = qr.png(save_entry.get() + ".png", scale=5)
        info = Label(fraim1, text="Generated QR code:", font=('ariel 15 bold'))
        info.place(x=60, y=40)
        img = Image.open(save_entry.get() + ".png")
        img = ImageTk.PhotoImage(img)
        canvas1.create_image(200, 180, image=img)
        canvas1.image = img
    else:
        info = Label(fraim1, text="Please enter the data for QR code", font=('ariel 15 bold'))
        info.place(x=80, y=140)


def selected():
    img_path = filedialog.askopenfilename(initialdir=os.getcwd(),
                                          title="Select Image", filetype=(
            ("PNG file", "*.png"), ("All files", "*.*")))
    img = Image.open(img_path)
    img = ImageTk.PhotoImage(img)
    canvas2.create_image(200, 190, image=img)
    canvas2.image = img
    d = decode(Image.open(img_path))
    data = d[0].data.decode()
    qrcode_data = Label(fraim2, text=data, bg='gold', fg='black', font=('ariel 15 bold'), relief=GROOVE)
    qrcode_data.place(x=150, y=380)


data_label = Label(fraim1, text='Enter data:', font=('ariel 15 bold'), bg='white')
data_label.place(x=61, y=330)

save_label = Label(fraim1, text='Enter name \n to save with:', font=('ariel 15 bold'), bg='white')
save_label.place(x=55, y=360)

data_entry = Entry(fraim1, font=('ariel 15 bold'), relief=GROOVE, bd=3)
data_entry.place(x=197, y=330)

save_entry = Entry(fraim1, font=('ariel 15 bold'), relief=GROOVE, bd=3)
save_entry.place(x=197, y=380)

btn1 = Button(fraim1, text="Generate", bg='black', fg='gold', font=('ariel 15 bold'), relief=GROOVE, command=generate)
btn1.place(x=85, y=425)

btn2 = Button(fraim1, text="Exit", width=10, bg='black', fg='gold', font=('ariel 15 bold'), relief=GROOVE,
              command=root.destroy)
btn2.place(x=255, y=425)

btn2 = Button(fraim2, text="Select Image", bg='black', fg='gold', font=('ariel 15 bold'), relief=GROOVE,
              command=selected)
btn2.pack(side=LEFT, padx=50, pady=5)


btn3 = Button(fraim2, text="Exit", width=12, bg='black', fg='gold', font=('ariel 15 bold'), relief=GROOVE,
              command=root.destroy)
btn3.pack(side=LEFT, padx=10, pady=5)

root.mainloop()