[英]how to create a dictionary with list of dictionaries as values from a list of dictionaries
I have this sample list of dictionaries:我有这个字典示例列表:
[
{
"name": "like father",
"director": "Ajun kun",
"edited": "2014-12-20T21:23:49.867000Z",
"similar_movies": [
"http://movies.dev/api/films/1/",
"http://movies.dev/api/films/3/",
],
"rating": "2.0",
},
{
"name": "be like her",
"director": tuned ku",
"edited": "2014-12-20T21:23:49.870000Z",
"similar_movies": [
"http://movies.dev/api/films/1/"
]
}, .......
]
Some of the dictionaries in the list contain ratings while others do not.列表中的某些词典包含评级,而其他词典则不包含。 I want to generate a new dictionary of like the dictionary below sorted by the ratings:我想生成一个像下面按评分排序的字典的新字典:
{
"movies":[
{"name": "movie_4", "rating" : 0.1},
{"name": "movie_1", "rating" : 0.3},
{"name": "movies_5", "rating" : 0.5}
],
"movies_without_rating": [
{"name": "movie_8"},
{"name": "movie_3"}
]
}
Here is my sample code:这是我的示例代码:
from flask import Flask, jsonify, request
import requests
from collections import ChainMap
app = Flask(__name__)
@app.route('/movies', methods=['GET'])
def returnAll():
#note: the URL is just a demo url
response = requests.get("https://movies.dev/api/movies/")
results = response.json()['results']
general_dic = {}
for result in result:
for key, val in result:
if (key == 'rating'):
general_dic['movies']
else:
general_dic['movies_with_rating']
return general_dic
return jsonify(results)
if __name__ == "__main__":
app.run(debug=True)
I got stuck and I couldn't continue, I will greatly appreciate your help.我被卡住了,无法继续,非常感谢您的帮助。
It seems something like this is what you'd like:看起来像这样的东西就是你想要的:
def separate_movies(movies_list):
movies_with_rating = []
movies_without_rating = []
for movie in movies_list:
name = movie["movies"]
if "rating" in movie:
movies_with_rating.append({
"name": name,
"rating": movie["rating"]
})
else:
movies_without_rating.append({
"name": name
})
movies_with_rating.sort(key = lambda movie: movie["rating"])
return {
"movies": movies_with_rating,
"movies_without_rating": movies_without_rating
}
The key here is using the in
keyword to check whether a movie has a rating.这里的关键是使用in
关键字来检查电影是否有评级。
You can use this example to integrate in your code:您可以使用此示例集成到您的代码中:
lst = [
{
"movies": "like father",
"rating": "2.0",
},
{
"movies": "other movie",
"rating": "2.5",
},
{
"movies": "be like her",
},
{
"movies": "other movie 2",
"rating": "5.5",
},
{
"movies": "other movie 3",
},
]
out = {'movies':[], 'movies_without_rating':[]}
for movie in lst:
if 'rating' in movie:
out['movies'].append({'name': movie['movies'], 'rating': float(movie['rating'])})
else:
out['movies_without_rating'].append({'name': movie['movies']})
# sort it
out['movies'] = sorted(out['movies'], key=lambda k: k['rating'])
# pretty print on screen:
from pprint import pprint
pprint(out)
Prints:印刷:
{'movies': [{'name': 'like father', 'rating': 2.0},
{'name': 'other movie', 'rating': 2.5},
{'name': 'other movie 2', 'rating': 5.5}],
'movies_without_rating': [{'name': 'be like her'}, {'name': 'other movie 3'}]}
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