CODEWITHSUNDEEP
python
Biggen
Biggen

Reputation: 295

Nested dict and retrieving key/values

If I have the following nested dict:

dicta = {'Saturday, August 26': {"Hawai'i": 'Massachusetts', 'Portland State': 'BYU', 'Oregon State': 'Colorado State', 'South Florida': 'San José State', 'Stanford': 'Rice'}}

If I wanted to access the games (which are themselves values of the outer key), is the only way to get to them is with a throwaway variable like:

for day in dicta:
    game_day = day  
        for home, away in day_dict[game_day].items():
            print(home, away)

I don't really care about the variable game_day as I already know the dict in question has the games in it I need. But I do need to access those games. So do I have to go about creating a variable just to get key:value pairs I need? Just trying to figure out a better way if there is one.

Edit: Update dict variable to same name as name in for loop

Upvotes: 2

Views: 280

Answers (3)

cookiedough
cookiedough

Reputation: 3832

Since your sample dictionary has a different name than the ones you used in the loop, it is not very clear to me what you're trying to do, but seems like you are looking for a more efficient way to traverse your dictionary and finding the values you want.

For that matter I recommend checking out the Python documentation on dictionaries, it is pretty helpful and introduces a lot of useful functions.

So one thing that might help you is the keys() and values() attributes of an= dictionary object. You can get a list of all the dictionary's keys by making a loop like:

for key in dict.keys():
    # do things with key

Or you can do things with the values of your dictionary like this:

for value in dict.values():
    # do things with value

Hope that's helpful!

Upvotes: 1

Ajax1234
Ajax1234

Reputation: 71451

If you wish to access just the games without specifying the day, you can try this:

for a, b in dicta.items():
      for c, d in b.items():
          print "opponent 1: ", c
          print "opponent 2: ", d

Upvotes: 0

aquil.abdullah
aquil.abdullah

Reputation: 3157

If you know the day before you iterate over the items in the dictionary, why not just do:

day = 'Saturday, August 26'
for home, away in day_dict[day].items():
    print home, away

Upvotes: 1

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