some basic looping through the list of dictionaries and adding the chosen key values to the new dictionary

Got some basic problems with looping through the list of dictionaries. I want to loop through the list called jslist and get an output as I show at the bottom. Basically I want to extract chosen key: value pairs (the ones I paste as an example below – site_id, sitekey, nickname) from the list and store them in another list of dicts.

jslist = [
    {'site_id': '1111111', 'hostname': 'abc.com', 'nickname': 'abc.com', 'sitekey': '29346385345', 'sitekey_admin': '293857349857934857345', 'timezone': '1', 'visitors_online': '1', 'visitors_today': '34'}, 
    {'site_id': '100992048', 'hostname': 'gcd.com', 'nickname': 'gcd.com', 'sitekey': '938573945739453', 'sitekey_admin': '20395734985793', 'timezone': '1', 'visitors_online': '0', 'visitors_today': '2'}]

dict_1 = {}

for k in jslist:
    dict_1['site_id'] = k['site_id']
    dict_1['sitekey'] = k['sitekey']
    dict_1['nickname'] = k['nickname']


print(list(dict_1))

current output:

{'site_id': '100992048', 'sitekey': '938573945739453', 'nickname': 'gcd.com'}

expected output

[{'site_id': '100992048', 'sitekey': '938573945739453', 'nickname': 'gcd.com'},{'site_id': '1111111', 'sitekey': '29346385345', 'nickname': 'abc.com'}]

>Solution :

You’re using one dict for each, so you keep appending the same instance, the dict creation should be inside the loop. Also you can store the needed keys in a list to made the code easier to update and proper

Combining with a list comprehension

keep = {'site_id', 'sitekey', 'nickname'}
jslist_new = [{k: item[k] for k in keep} for item in jslist]