Selecting only a specific key-value pair inside object-CodePudding

I have this structure:

attributes_json = {
  "attributes": [
    {
      "color": "blue",
      "id": 78923,
      
    {
      "color": "red",
      "id": 321

I wanna select only the "color" key and its values and then put them inside a list, how can I do that in Python?

I have tried this so far but it only gives the first color:

lista = [item for item in attributes_json['attributes'][0]['color']]

CodePudding user response：

I am assuming that the structure is a dictionary with a key "attributes", and "attributes" is a list of dictionaries, each with a key "color". You have the right idea, but you are only accessing the first entry. You need to loop over the list of dictionaries like so:

attributes_list = attributes_json["attributes"]

colors = []
for entry in attributes_list:
    color = entry["color"]
    colors.append(color)

In list comprehension form,

colors = [entry["color"] for entry in attributes_json["attributes"]]

CodePudding user response：

attributes = attributes_json["attributes"]

color=[] for x in attributes: colors = x['color'] color.append('color')