Arrow keys not working in vi/vim in remote ubuntu terminal

Question

I am trying to edit my python file in vi, but my arrow keys are not working.

 vim $HOME/.vimrc     -->   :set nocompatible

I tried arrow keys , Home, Delete and End keys in both vi and vim , but they are not working..

vi x.py

vim x.py

Solution

Arrow keys are useful when in insert mode. It may be that your vim installation is not a full one per Linux vi arrow keys broken in insert mode in which case follow the instructions in the answer by Han.