Calcular o Custo do Capital usando tkinter
import tkinter class capmapp_tk(tkinter.Tk): def __init__ ( self ,parent): tkinter.Tk. __init__ ( self ,parent) self .parent = parent self .initialize() def initialize( self ): self .grid() ## Title --------------------------------------- titlelbl = tkinter.Label( self , text = "Rentabilidade " "Esperada " "para o Património " "Líquido" , anchor = "center" , fg = "white" , bg = "blue" ) titlelbl.grid( column = 0 , row = 0 , columnspan = 3 , sticky = 'EW' ) ## Input Labels -------------------------------------------------- rflbl = tkinter.Label( self , text = "Rentabilidade " ...