class LoginController(): def __init__(self, log_in): self.user = User(connection()) self.log_in = log_in def logIn(self,user,password, Ui_Principal, LogIn): if user and password: user = self.user.getUser(user,password) if user: LogIn.hide() self.log_in.Form = QtWidgets.QMainWindow() self.log_in.ui = Ui_Principal() self.log_in.ui.setupUi(self.log_in.Form) self.log_in.Form.show() print('Estas logeado') else: print('No estas logeado')