Enter a code. If the first time you enter a number above and press add, write it under the line instead of the line. Every time you write a number above and press add, the value below is increased. See the normal calories on the internet. If it exceeds it$,$ write it below in the reference. Calories exceed the normal limit$.$Here is the code : from PyQt$5$ import QtWidgetsfrom healthApp$\_$w import healthAppfrom rigister$\_$screen$\_$w import rigformfrom login$\_$screen$\_$w import logformclass MainController: def $\_\_$init$\_\_($self$)$: self.app $=$ QtWidgets.QApplication$($sys$.$argv$)$ self.main$\_$window $=$ QtWidgets.QMainWindow$()$ self.widget $=$ QtWidgets.QWidget$()$ def show$\_$health$\_$app$($self$)$: self.ui $=$ healthApp$()$ self.ui$.$setupUi$($self$.$main$\_$window$)$ self.main$\_$window.show$()$ def show$\_$register$\_$screen$($self$)$: self.ui $=$ rigform$()$ self.ui$.$setupUi$($self$.$widget$)$ self.widget.show$()$ self.ui$.$back$\_$b$.$clicked.connect$($self$.$show$\_$login$\_$screen$)$ # def show$\_$login$\_$screen$($self$)$: self.ui $=$ logform$()$ self.ui$.$setupUi$($self$.$widget$)$ self.widget.show$()$ # self.ui$.$login$\_$b$.$clicked.connect$($self$.$handle$\_$login$)$ # self.ui$.$rigister$\_$b$.$clicked.connect$($self$.$show$\_$register$\_$screen$)$ def handle$\_$login$($self$)$: # self.show$\_$health$\_$app$()$ def handle$\_$registration$($self$)$: # self.show$\_$login$\_$screen$()$ def run$($self$)$: self.show$\_$login$\_$screen$()$ # sys$.$exit$($self$.$app.exec$\_())$if $\_\_$name$\_\_=="\_\_$main$\_\_"$: import sys controller $=$ MainController$()$ controller.run$()$