combining lists containing dictionaries-CodePudding

so i have this code which gives me 10 lists, each having 676 dictionaries. these are stored in the variable(bigram_lists)

i want to make 1 list having all the dictionaries then i want to combine the dictionaries with the same key(keeping the key and add up their values)

i tried referencing the lists and dictionaries that are stored in the variable but it didnt work

is there a way to do this? preferably using a for loop and some short commands

CodePudding user response：

Is this what you want to do ?

output = {}
for sublist in bigram_lists:
   for dic in sublist:
      for key in dic:
         output[key] = output.get(key, 0)  dic[key]

CodePudding user response：

You can first linearize your lists of dictionaries, then merge together with a for loop:

d_out = {}
bigrams_linear = sum([list(d.items()) for d in sum(bigrams_lists, [])], [])
for k, v in bigrams_linear:
    if k not in d_out:
        d_out[k] = 0
    d_out[k]  = v 
d_out

Change your bigram_frenquency function like this:

def bigram_frequency(taal):
    languages = ['dutch', 'english', 'french', 'italian', 'german', 'spanish']
    if taal in languages:
        bigram_all_lists = []

        # gather all data from lists
        for i in range(10):
            j = i 1
            bigram_lists = bigram_frequentie(taal   str(j)   '.txt')
            bigram_all_lists.append(bigram_lists)

        #operate on bigram_all_lists
        < call previous code here >