Making tab and spaces visible in vi editor

while typing python code in vi editor,   space and tab make compile errors.

By using 'set list' , user can check tab and space characters.

# Normal mode

:set list

:set list listchars=tab:\|\-    #last char is space.

:set list!   #off  command

Change vi color scheme

It is based on http://kb.mediatemple.net/questions/1565/Enabling+vi+syntax+colors#gs

1) open .vimrc    at home directory
2) Add below codes.
      syntax on
      colorscheme desert
3) Save it.
4) open code file by vi.

** color scheme list
    default, desert, elflord...

Enjoy it.