[Tutor] menu based programs

[Siya 360]

Hi,

Am still learning Python, and i have been tasked with writing a used menu, where once session is initialised by user inputing a used code e.g. *123#, it displays menu to user with option

i want to learn how to write code to interact with the user, in a sequence where if option 1, then display a, if 2 then display b, if 3 display c, if 4 display exit, if 1 selected, leads to option a, which in turn has it own options

please assist?

kind regards,
Siya