def sumInList(complexList):
  ''' Given a complexList [ [a1,b1,c1], [a2,b2,c2], [a3,b3,c3] ],
      return a list [ a, b, c] where a = a1+a2+a3, etc.'''
  d = rezip(complexList)
  return [ reduce(lambda x,y:x+y, z) for z in d ]
 Given a complexList [ [a1,b1,c1], [a2,b2,c2], [a3,b3,c3] ],
      return a list [ a, b, c] where a = a1+a2+a3, etc.
recipes/Python/278258_List_Tools/recipe-278258.py