CODEWITHSUNDEEP
pythondictionaryfor-loop
mahdi-khesali
mahdi-khesali

Reputation: 13

For loop on nested dicts

I tried to create for loops for my nested dicts, but they do not work properly. My nested dicts look like that:

mydict = {'a':{'alpha': 2, 'Beta': 6, 'Gamma': 10}, 
        'b' : {'Beta' : 3 , 'Delta': 7, 'Epsilon' : 5}, 
        'c' : {'Epsilon': 4 , 'Zeta' : 1, 'alpha' : 6}}

what I want to do is to define a function which gets a dictionary and a word as arguments. It searches through keys in the inner dictionary for the word. If it finds the word in the keys of inner dictionaries, it gets its value and assigns it to keys of the outer dictionary and returns a new dictionary. In this example, if we search for alpha, the result will be something like that:

dict_alpha = {'a': 2,'b' : 0,'c' : 6}

My codes which have not work look like this:

def counter_finding(corpus, word):
dict_2= {}
for k_1, v_1 in corpus.items():
    for k_2, v_2 in v_1.items():
        if word in key:
            dict_2[k_1] = country_value[v_2]
        else:
            dict_2[k_1] = 0
return dict_2

Upvotes: 1

Views: 78

Answers (2)

user10340258
user10340258

Reputation: 359

def counter_finding(dict1, word):
    dict_2= {}
    for k_1, v_1 in dict1.items():
        print (k_1,v_1)
        if word in v_1:
                dict_2[k_1] = v_1[word]
        else:dict_2[k_1] = 0
    return dict_2

Upvotes: 0

Rakesh
Rakesh

Reputation: 82765

Using a simple iteration and dict.get

Ex:

d = {'a':{'alpha': 2, 'Beta': 6, 'Gamma': 10},
        'b' : {'Beta' : 3 , 'Delta': 7, 'Epsilon' : 5}, 
        'c' : {'Epsilon': 4 , 'Zeta' : 1, 'alpha' : 6}}

key = 'alpha'
res = {}
for k, v in d.items():
    res[k] = v.get(key, 0)    # .get() with default value 0
print(res)

Output:

{'a': 2, 'b': 0, 'c': 6}

Upvotes: 2

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