How to pass json list values into python list?

Question

My json data will print all the items of my emailList when I do this:

        print(data['emailList'])

and it will return this:

[
{
'emailId': 987654321,
'customerId': 123456789,
},
{
'emailId': 56789,
'customerId': 8765,
}
]

How could I include all the possible values for customerId into my final_list? I've tried this:

 final_list = []
    for each_requ in data:
        final_list.append(each_requ)[emailList][customerId]
    return final_list

but received this error:

 TypeError: list indices must be integers or slices, not str

desired output:

    [123456789 ,8765]

print(data['emailList'][customerId]) won't print anything. — Baobab1988
– Baobab1988, Commented Apr 28, 2020 at 10:13
Your "json data" are plain ordinary Python types - in your case a python dict which "emailList" key points to a python list of python dicts. IOW, the fact you got those data from json is totally irrelevant. — bruno desthuilliers
– bruno desthuilliers, Commented Apr 28, 2020 at 10:35

Beny Gj · Accepted Answer · 2022-02-02 06:54:22Z

2

here the solution


your_json = [{'emailId': 987654321, 'customerId': 123456789},
 {'emailId': 56789, 'customerId': 8765}]

[i['customerId'] for i in your_json]  
[123456789, 8765]

so for your code, you can do something like that

email_list = data['emailList']
result = [i['customerId'] for i in email_list]

or single line

result = [i['customerId'] for i in data['emailList']]

with map

result = list(map(lambda x: x['customerId'], data['emailList']))

edited Feb 2, 2022 at 6:54

answered Apr 28, 2020 at 10:14

Beny Gj

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Comments

akhter wahab · Accepted Answer · 2020-04-28 10:15:17Z

0

 final_list = []
    for each_requ in data:
        final_list.append(each_requ['customerId'])
    return final_list

this should return your desired results if json like dict is in data variable

answered Apr 28, 2020 at 10:15

akhter wahab

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