How to validate an email address in Python Tkinter using regex?

 

test1.py

from tkinter import *
from tkinter import messagebox
from test.regex import emailvalidation

app=Tk()
app.geometry("500x400")
app.title("Hancie e-Learning Studio")


def check():
    txt = text.get()
    creditResult=emailvalidation(txt)
    if creditResult==True:
        messagebox.showinfo("Info","The email address is valid")
    else:
        messagebox.showerror("Error","Invalid Email Address")


text=Entry(app,font=("Times New Roman",16))
text.pack()

btn=Button(app,text="Check Email",font=("Times New Roman",16), command=check)
btn.pack()


app.mainloop()

regex.py

import re

regex = re.compile(r'([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+')
def emailvalidation(email):
    if re.fullmatch(regex, email):
        result=True

    else:
        result=False

    return result

Output