KivyCalendar is module with additional widgets for Kivy:
CalendarWidget and DatePicker.
CalendarWidget based on RelativeLayout. It allow to switch months by
buttons in left-top and right-top widget’s corners.
CalendarWidget
DatePicker based on TextInput. When textinput field focused shows
popup with CalendarWidget. Once data selected popup dismiss and selected
date puts into textinput field.
