How to merge multiple dictionaries into one when iterating over them one by one in python-CodePudding

I have list of dictionaries and I am trying to take each dictionary and group them into one dictionary after iterations. Is there a simple way of doing this. So far I am taking each dictionary after each iteration and appending them into a list. After the iteration I get an output like below:

data = [{'disabled': False, 'id': '28394', 'self': 'www.google.com/28394', 'value': 'Tuesday'}, {'disabled': False, 'id': '23433', 'self': 'www.google.com/23433', 'value': 'Wednsday'}]

I would like to either convert it from a list to a single dictionary or somehow merge each dictionary into one like below.

data = {'disabled': False, 'id': '28394', 'self': 'www.google.com/28394', 'value': 'Tuesday', 'disabled': False, 'id': '23433', 'self': 'www.google.com/23433', 'value': 'Wednsday'}

Once I get that I want to add the dictionary using the dict() method that creates the empty dictionary to store those values.

Below is my code:

    elif(key == 'customfield_12951'):
             newDictionaryValues = []
             for issueItemInspection in oIssues['customfield']:
                 if(oIssues[key] == None):
                     values = {'value': None}
                     verificationDictNone = dict(values)
                     iterateDictIssues(verificationDictNone, listInner)
                 else:
                     if(len(oIssues[key]) == 1): 
                         values = issueItemInspection
                         verificationDict = dict(values)
                         iterateDictIssues(verificationDict, listInner) 
                     else:
                         values = issueItemInspection
                         newDictionaryValues.append(values)
                         print(newDictionaryValues)
                         verificationDictValues = dict(values)
                         iterateDictIssues(verificationDictValues, listInner)

There are multiple keys holding each dictionary and as you can see the issueItemInspection is carrying each individual dictionary. As each key dictionary gets appended I would like to merge these all into one or convert it from a list to a single dictionary. Right now it is a big list of dictionaries.

CodePudding user response：

I don't fully understand your point, but how about storing values with same keys into list?

from collections import defaultdict


data = [{'disabled': False, 'id': '28394', 'self': 'www.google.com/28394', 'value': 'Tuesday'}, {'disabled': False, 'id': '23433', 'self': 'www.google.com/23433', 'value': 'Wednsday'}]

d = defaultdict(list)

for dictionary in data:
    for k, v in dictionary.items():
        d[k].append(v)


print(d)

CodePudding user response：

You can't get to the requested data since your dictionnary have multiple key definition, it will only keep the last key value:

>>> dict_test = {'test': 1, 'test': 2}
>>> print(dict_test )
{'test': 2}