How to numb each conclusion of Print?

The built -in function is exactly what you need!
It retus the motorcade with the serial number and the next element:

   & gt; & gt; & gt;  seasons = [ 'spring' ,  'summer' ,  'fall' ,  'Winter' ]   & gt; & gt; & gt;   line  ( enumerate  (seasons))  [( 0 ,  '"spring' ), ( 1 ,  'summer' ), ( 2 ,  'fall' ), ( 3 ,  'winter' )]     
 The numbering can be read from a given number (0 by default): 
  
   & gt; & gt; & gt;   lim  ( enumerate  (seasons, start =  1 ))  [( 1 ,  'spring' ), ( 2 ,  'summer' ), ( 3 ,  'fall' ) ( 4 ,  'winter' )]     
 for your case: 
  
  MONTHS = [ 'January' ,  'february' ,  '' march ',  'April' ,  'May' ,  'june' ,  'july' ,  'August' ,  'september' ,  'october' ,  '' "november ',  'December' ]   for  i, m  in   enumerate  (months,  1 ): # read the numbering with 1    print  ( f ':  {m}  ')     
 to print: 
  
   1 : january  2 : february  3 : march  4 : april  5 : May  6 : june  7 : july  8 : auugust  9 : september  10 : october  11 : november  12 : December 
   
 or like this: 
  
   PrinT  ( f '[ {i} ]  {m} ' )     
 will lead to your template: 
  
  [ 1 ] January [ 2 ] february [ 3 ] march [ 4 ] april [ 5 ] May [ 6 ] june [ 7 ] July [ 8 ] august [ 9 ] september [ 10 ] october [ 11 ] november [ 12 ] December