I'm beginner in Python, and making a words game. And have a dictionary of {"player 1":0, "player 2":0} that keeps track of the two players score.
I have a play again option so i need to always store the score into that dictionary.
But when i retrieve this dictionary values after each round using this :
for value, index in enumerate(players):
print index, " : ", value
I get this just no matter how many rounds are played :
Player 2 : 0
Player 1 : 1
But when i use :
for index in players:
print index, " : ", players.get(index, 0)
I get the actual values that i want.
My question is what's the difference between getting values using the two methods ?
enumerate is iterating over the dictionary, but by default, you iterate over the keys only:
iter(d)
Return an iterator over the keys of the dictionary. This is a shortcut for iterkeys().
What you probably want is either items() or values().
items()
Return a copy of the dictionary’s list of (key, value) pairs.
values()
Return a copy of the dictionary’s list of values. See the note for dict.items().
I think you want this:
for name, score in players.items():
print name, " : ", score
Or maybe:
for index, (name, score) in enumerate(players.items()):
print index, " : ", name, " : ", score
Just to demonstrate the other two possibilities, this method looks up all of the names:
for name in players: # or players.keys()
print name
And this looks up scores (without names):
for score in players.values():
print score