Iterate a list as pair (current, next) in Python

Question

I sometimes need to iterate a list in Python looking at the \"current\" element and the \"next\" element. I have, till now, done so with code like:

for curre         


        

Answer 1

A basic solution:

def neighbors( list ):
  i = 0
  while i + 1 < len( list ):
    yield ( list[ i ], list[ i + 1 ] )
    i += 1

for ( x, y ) in neighbors( list ):
  print( x, y )