How to select desired elements in nested python dictionaries?

Question

Python

Hello everyone, friends,
I'm experimenting with the contact API) I'm
downloading posts from a group for data analysis. For example, I received a dictionary with the following posts:
Here I uploaded json to pastebin https://pastebin.com/HnReC414
I receive and add the following data to the new dictionary:

posts = otvet_json["response"]['items']         #   Сохраняем в переменную все посты
all_posts = []  # Подготовили пустой список для сохранения туда всех данных
filtered_data = []     # Подготовили пустой список для сохранения туда всех отфильтрованных данных
for posts in all_posts:
        id = posts["id"]
        date = time.ctime(posts["date"])
        linuxe_date = posts["date"]
        text = posts["text"]
        likes = posts["likes"]["count"]
        comments = posts["comments"]["count"]
        reposts = posts["reposts"]["count"]
        views = posts["views"]["count"]
        marked_as_ads = posts["marked_as_ads"]
       


        filtered_posts = {
                "id": id,
                "date" : date,          #   Создаем ключ date и записываем туда значение из переменной date
                "linuxe_date" : linuxe_date,            #   Создаем ключ linuxe_date и записываем туда значение из переменной linuxe_date
                "text" : text,          #   Создаем ключ text и записываем туда значение из переменной text
                "likes" : likes,        #   Создаем ключ likes и записываем туда значение из переменной likes
                "comments" : comments,          #   Создаем ключ comments и записываем туда значение из переменной comments
                "reposts" : reposts,          #   Создаем ключ reposts и записываем туда значение из переменной reposts
                "views" : views,          #   Создаем ключ views и записываем туда значение из переменной views
                "marked_as_ads" : marked_as_ads,          #   Создаем ключ marked_as_ads и записываем туда значение из переменной marked_as_ads


        }
        filtered_data.append(filtered_posts)

How to isolate all photos from all posts of the maximum size, i.e. "type": "x" and then add all this to filtered_data ?
I think the algorithm should be something like this:

try:
                attachments = posts["attachments"]
                for att1 in attachments:
                        if att1["type"] == "photo":
                                for razmerphoto in att1:
                                        if razmerphoto["photo"]["sizes"]["type"] == "x":
                                Дальше не знаю как правильно прописать.....
        except:
                attachments = "netu"

Also, while it is not clear to me how to weed out advertising posts? Some posts have "marked_as_ads" attribute: 1 I.e. you need to somehow make an algorithm so that if "marked_as_ads": 1, then this entire post is immediately eliminated.
I think the algorithm should be something like this:

for posts in all_posts:
        if pppposts["marked_as_ads"] == 1:
                del posts

Many thanks in advance, friends.

Answer 1

How to isolate all photos from all posts of the maximum size, i.e. "type": "x" and then add all this to filtered_data ?

Take the last size. More or less like this
It is better not to delete, but simply filter your cycle (skip these posts in your cycle).