login + tk

login.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import tkinter as tk
from tkinter import ttk
from ttkthemes import ThemedTk
from functools import partial

#  Função que valida o Login
def validar_login(username, password):
    print('Usuário : ', username.get())
    print('Senha : ', password.get())
    return

#  Colocando o Tema TTK yaru
root = ThemedTk(theme='yaru')

#  Imagem que vai no centro do login
imagem = tk.PhotoImage(file=r'home\rodrigo\login.png')
label = tk.Label(root, image=imagem)
label.imagem = imagem
#  Posição
label.place(x=120, y=10)

#  Input de usuário e pegando a String digitada
username = tk.StringVar()
input_user = tk.Entry(root, textvariable=username, cursor='hand2',
        width=29, foreground='#252547', background='#F0F0F0', 
        font='TkDefaultFont 14')
input_user.place(x=40, y=155)
input_user.configure(justify='left', bd=1,
        relief='ridge', selectforeground='white', 
        selectbackground='orange')
#  PlaceHolder A
placeholdera = '[email protected]'
input_user.delete(0, tk.END)
input_user.insert(0, '       '+placeholdera)


password = tk.StringVar()
input_password = tk.Entry(root, textvariable=password,
        width=29, foreground='#252547', background='#F0F0F0', 
        font='TkDefaultFont 14')
input_password.place(x=40, y=200)
input_password.configure(justify='left', bd=1, 
        relief='ridge', selectforeground='white', 
        selectbackground='orange')

#  Placeholder B
placeholderb = '*****************'
input_password.delete(0, tk.END)
input_password.insert(0, '       '+placeholderb)

validar_login = partial(validar_login, username, password)

#  Botão de Submit que invoca a função que valida o Login
submit = ttk.Button(root, text='LOGIN', width=50, 
        cursor='hand2', command=validar_login)
submit.place(x=40, y=240)

#  Factory Padrão..
root.title('Tkinter - Mostrando um Login')
root.geometry('400x300') 
root.resizable(False, False)
root.iconbitmap(r'home\rodrigo\lock2.ico')
root.eval('tk::PlaceWindow . center')
root.mainloop()