Index – Y ycor() (in module turtle) year calendar command line option year (datetime.date attribute) (datetime.datetime attribute) Year 2038 yeardatescalendar() (calendar.Calendar method) yeardays2calendar() (calendar.Calendar method) yeardayscalendar() (calendar.Calendar method) YES (in module tkinter.messagebox) YESEXPR (in module locale) YESNO (in module tkinter.messagebox) YESNOCANCEL (in module tkinter.messagebox) yield examples expression keyword statement yield from (in What's New) Yield (class in ast) YIELD_VALUE (opcode) YieldFrom (class in ast) yiq_to_rgb() (in module colorsys) yview() (tkinter.ttk.Treeview method)