text: # Aula 76 - abas (Frames) e notebook
  
  from tkinter import *
  from tkinter import ttk
  
  app = Tk()
  app.title('Pedroso')
  app.geometry('500x300')
  
  nb = ttk.Notebook(app)
  nb.place(x=1, y=0, width=500, height=300)
  
  tb1 = Frame(nb)
  tb2 = Frame(nb)
  
  nb.add(tb1, text='Linguagem')
  nb.add(tb2, text='Sist. Operacional')
  
  l1_label = Label(tb1, text='Python')
  l1_label.pack()
  
  l2_label = Label(tb1, text='C')
  l2_label.pack()
  
  l3_label = Label(tb2, text='Windows')
  l3_label.pack()
  
  l4_label = Label(tb2, text='Linux')
  l4_label.pack()
  
  
  app.mainloop()
  