How to loop through dict of list of dict kind of data using python

i am trying to loop through using python

{u'customfield_10067': [u'{"field_type":"cmdb-object-cftype","value":{"workspaceId":"dsjahdjasf-61f7-4421-9ced-df122a122d603","name":"test","objectId":"14","id":"dsjahdjasf-61f7-4421-9ced-df122a122d603:14"}}']}

to get value of custom field in a dict as

{
customfield_10067 : 
{"workspaceId":"dsjahdjasf-61f7-4421-9ced-df122a122d603","objectId":"14","id":"dsjahdjasf-61f7-4421-9ced-df122a122d603:14"}
}

i tried looping as list of dict and dict iteration , however when i loop as a dict it throws error

TypeError: ValueError('dictionary update sequence element #0 has length 1; 2 is required',) is not JSON serializable

when looping as list of dict it throws string indices error

any help is much appreciated.

custom_fields = [] regex = '[^A-Za-z0-9]+' project_id = request.data['project_id'] description = re.sub(regex, ' ', str(request.data['description'])) summary = re.sub(regex, ' ', str(request.data['subject'])) issue_type_id = re.sub(regex, '', str(request.data['issuetype'])) request_dict = dict(request.data)

for fields,value in request_dict.items(): if "custom" in fields: custom_data = {fields : value} custom_fields.append(custom_data) # print(custom_fields) for k,v in dict(custom_fields).items(): print(k) print(v)

Solution

Maybe eval() will be able to get the work done, though it may need more validations depending on how many strings does your list contain, but you get the idea.

dict_list = {u'customfield_10067': [u'{"field_type":"cmdb-object-cftype","value":{"workspaceId":"dsjahdjasf-61f7-4421-9ced-df122a122d603","name":"test","objectId":"14","id":"dsjahdjasf-61f7-4421-9ced-df122a122d603:14"}}']}
new_dict = {}
for key, value in dict_list.items():
    new_dict[key] = eval(value[0])['value']
print(new_dict)

output:

{'customfield_10067': {'workspaceId': 'dsjahdjasf-61f7-4421-9ced-df122a122d603', 'name': 'test', 'objectId': '14', 'id': 'dsjahdjasf-61f7-4421-9ced-df122a122d603:14'}}