python ladder02.py

 Current ladder list: ['essays']
 DEAD END...No neighbors of essays
 
 python ladder02.py
 Current ladder list: ['teller']
 Neighbors of teller: ['seller', 'taller', 'tiller', 'yeller']  
   ... picking seller from nbr list and adding to the ladder
 Current ladder list: ['teller', 'seller'],  
   ...letter difference between teller and seller = 1,  COUNT = 1

 Neighbors of seller: ['sealer', 'yeller']  
   ... picking sealer from nbr list and adding to the ladder
 Current ladder list: ['teller', 'seller', 'sealer'],  
   ...letter difference between teller and sealer = 2,  COUNT = 2

 Neighbors of sealer: ['dealer', 'healer', 'sealed']  
   ... picking dealer from nbr list and adding to the ladder
 Current ladder list: ['teller', 'seller', 'sealer', 'dealer'],  
   ...letter difference between teller and dealer = 2,  COUNT = 3

 Neighbors of dealer: ['deafer', 'dearer', 'dialer', 'healer']  
   ... picking dialer from nbr list and adding to the ladder
 Current ladder list: ['teller', 'seller', 'sealer', 'dealer', 'dialer'],  
   ...letter difference between teller and dialer = 3,  COUNT = 4

 Neighbors of dialer: ['dialed', 'diaper']  
   ... picking diaper from nbr list and adding to the ladder
 Current ladder list: ['teller', 'seller', 'sealer', 'dealer', 'dialer', 'diaper'],  
   ...letter difference between teller and diaper = 4,  COUNT = 5
 
 python ladder02.py
 Current ladder list: ['madras']
 DEAD END...No neighbors of madras
 
 python ladder02.py
 Current ladder list: ['mutely']
 DEAD END...No neighbors of mutely

 python ladder02.py
 Current ladder list: ['rivers']
 Neighbors of rivers: ['divers', 'givers', 'livers', 'riders', 'risers', 'rivets']  
   ... picking divers from nbr list and adding to the ladder
 Current ladder list: ['rivers', 'divers'],  
   ...letter difference between rivers and divers = 1,  COUNT = 1

 Neighbors of divers: ['diners', 'divert', 'givers', 'livers']  
   ... picking livers from nbr list and adding to the ladder
 Current ladder list: ['rivers', 'divers', 'livers'],  
   ...letter difference between rivers and livers = 1,  COUNT = 2

 Neighbors of livers: ['givers', 'levers', 'liners', 'liters', 'livery', 'lovers']  
   ... picking levers from nbr list and adding to the ladder
 Current ladder list: ['rivers', 'divers', 'livers', 'levers'],  
   ...letter difference between rivers and levers = 2,  COUNT = 3

 Neighbors of levers: ['fevers', 'levees', 'levels', 'lovers', 'severs']  
   ... picking levels from nbr list and adding to the ladder
 Current ladder list: ['rivers', 'divers', 'livers', 'levers', 'levels'],  
   ...letter difference between rivers and levels = 3,  COUNT = 4

 Neighbors of levels: ['bevels', 'levees', 'revels']  
   ... picking levees from nbr list and adding to the ladder
 Current ladder list: ['rivers', 'divers', 'livers', 'levers', 'levels', 'levees'],  
   ...letter difference between rivers and levees = 3,  COUNT = 5