Sayth Renshaw wrote:
> I want to do basic math with a list.
>
> a = [1, 2, 3, 4, 5, 6, 7, 8]
>
> for idx, num in enumerate(a):
> print(idx, num)
>
> This works, but say I want to print the item value
> at the next index as well as the current.
>
> for idx, num in enumerate(a):
>
> print(num[idx + 1], num)
> ....
#!/usr/bin/env python3
# sum each adjacent pair of elements in a list
ls = list( range( 10 , 1 , -1 ) )
print('\n ' , ls , '\n' )
for enum , n in enumerate( range( len( ls ) - 1 ) ) :
i_left , i_rite = ls[ n : n + 2 ]
i_tot = i_left + i_rite
print( ' {:2d} : {:2d} + {:2d} = {:4d} '.format( enum , i_left , i_rite
, i_tot ) )
--
Stanley C. Kitching
Human Being
Phoenix, Arizona
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