pokemon.py

# pokemon.py by gauravssnl

pokemonL = [ ]

while True :
    pname = raw_input( 'Pokemon Name:' )
    if pname != " "  and pname not in pokemonL :
        pokemonL.append( pname )
    elif pname == " " :
        break
# sort name
pokemonL.sort( )

# relate each pokemon to remaining pokemon

for i in range( len( pokemonL ) ) :
    for j in pokemonL[ i+1 : ] :
        print("%s defeats %s"%( pokemonL[i] , j ) )