Zip Lists Together

zip_lists.py

families = [["Jenny", "Dana", "Tana", "Shawn", "Mark"], ["Kevin", "Jamison", "Brian", "Alice"], ["Chris", "John", "April"], ["Kevin", "Jim", "Bobby", "Ryan"]]
surnames = ['Richards', 'Millhouse', 'Carmichael', 'Williams']

for index, name in enumerate(surnames):
  families[index] = list(map(lambda x: "%s %s" % (x, name), families[index]))

for family in families:
  print(family)
  
#=> ['Jenny Richards', 'Dana Richards', 'Tana Richards', 'Shawn Richards', 'Mark Richards']
#   ['Kevin Millhouse', 'Jamison Millhouse', 'Brian Millhouse', 'Alice Millhouse']
#   ['Chris Carmichael', 'John Carmichael', 'April Carmichael']
#   ['Kevin Williams', 'Jim Williams', 'Bobby Williams', 'Ryan Williams']