如何在嵌套字典中附加值

Question

dictnry={token1:{1:freq1,2:freq1a},
        ,token2:{1:freq2,2:freq2a,3:freq2b}
        ,token3:{3:freq4}}

How do i loop through a dictionary with int:dict as key:value pairs and append a new dictionary ( eg: {5:freq5} in token1 and {1:freq11} in token3 ) into its secondary existing dictionary

for loop in dictnry:
   condition==true:
      for loop in sec_dictnry:
         p={5:freq5}  #p IS THE NEW DICTIONARY & 5 and freq5 will be substituted with variables
         dictnry[token1].append_for_dictionary_function_or_something(p) #WHAT DO I DO IN THIS LINE

dictnry={token1:{1:freq1,2:freq1a,5:freq5},
        ,token2:{1:freq2,2:freq2a,3:freq2b}
        ,token3:{3:freq4,1:freq11}}

Answer 1

You can create another dictionary of the things you want to add:

import json

d = {
    "token1": {
        1: "freq1",
        2: "freq1a",
    },
    "token2": {
        1: "freq2",
        2: "freq2a",
        3: "freq2b",
    },
    "token3": {
        3: "freq4",
    }
}

print("Before:")
print(json.dumps(d, indent=4))

key_entry_to_add = {
    "token1": {
        5: "freq5",
    },
    "token3": {
        1: "freq11",
    }
}

for key, entry in key_entry_to_add.items():
    entry_key, entry_val = next(iter(entry.items()))
    d[key][entry_key] = entry_val

print("After:")
print(json.dumps(d, indent=4, sort_keys=True))

Output:

Before:
{
    "token1": {
        "1": "freq1",
        "2": "freq1a"
    },
    "token2": {
        "1": "freq2",
        "2": "freq2a",
        "3": "freq2b"
    },
    "token3": {
        "3": "freq4"
    }
}
After:
{
    "token1": {
        "1": "freq1",
        "2": "freq1a",
        "5": "freq5"
    },
    "token2": {
        "1": "freq2",
        "2": "freq2a",
        "3": "freq2b"
    },
    "token3": {
        "1": "freq11",
        "3": "freq4"
    }
}

Answer 2

You can simply loop over you dictionary and once the key is equal to the key you want to append some dict in its value and do it like the following

Example

from pprint import pprint
dictionary = {
                'token1':{1:'freq1',2:'freq1a'},
                'token2':{1:'freq2',2:'freq2a',3:'freq2b'},
                'token3':{3:'freq4'}
            }
for x, y in dictionary.items():
    if x == 'token1':
        y[5] = 'freq5'
    if x == 'token3':
        y[1] = 'freq11'

pprint(dictionary)

Or

dictionary['token1'][5] = 'freq5'
dictionary['token3'][1] = 'freq11'

output

{'token1': {1: 'freq1', 2: 'freq1a', 5: 'freq5'},
 'token2': {1: 'freq2', 2: 'freq2a', 3: 'freq2b'},
 'token3': {1: 'freq11', 3: 'freq4'}}