从字典列表制作嵌套字典

Question

PROBLEM STATEMENT

x is an input list of dictionaries which needs to be formatted to y which is also a list of dictionaries, but in this case the key is pickupAddress and the sub dictionary consist of { zipcode,lat,long}

so basically, i want to transform x to y

Approach taken

1. have used tuples to store the values and then inserted to a list

code screenshot

 deliveryAddress={} pickupAddress={} l1=[] l2=[] l1_del=[] l2_pick=[] for i in range(len(x)): k1=('zipcode',x[i]['delivery_zip']) l1.append(k1) k2=('longitude',x[i]['delivery_lng']) l1.append(k2) k3=('latitude',x[i]['delivery_lat']) l1.append(k3) k4=('zipcode',x[i]['latitude']) l2.append(k4) k5=('longitude',x[i]['longitude']) l2.append(k5) k6=('latitude',x[i]['zipcode']) l2.append(k6) t1=("pickupAddress",l1) t2=("deliveryAddress",l2) print(l1) print(l2) if i < len(x): print(len(x)) l1_del.append(t1) l2_pick.append(t2) del l1 del l2 l1=[] l2=[]

INPUT

LIST_OF_DICTIONARY INPUT

CODE SNIPET

 [{'delivery_zip': '12432', 'delivery_lat': 42.0437, 'delivery_lng': -73.9474, 'distance': 43.81927669168279, 'latitude': 41.6770047, 'longitude': -73.7535413, 'zipcode': 12510}, {'delivery_zip': '12404', 'delivery_lat': 41.8293989, 'delivery_lng': -74.2414092, 'distance': 43.872670571109516, 'latitude': 41.6770047, 'longitude': -73.7535413, 'zipcode': 12510}]

OUTPUT

OUTPUT_FORMAT

 y=[{ "pickupAddress": { "zipcode": "12510", "latitude": 41.6770047, "longitude": -73.7535413 }, "deliveryAddress": { "zipcode": "12432", "latitude": 42.0437, "longitude": -73.9474 } }, { "pickupAddress": { "zipcode": "12510", "latitude": 41.6770047, "longitude": -73.7535413 }, "deliveryAddress": { "zipcode": "12404", "latitude": 41.8293989, "longitude": -74.2414092 } } ]

output approach1

Answer 1

To transform one list into another list, use a list comprehension:

y = [
        {
            "pickupAddress": { "zipcode": obj['zipcode'], "latitude": obj['latitude'], "longitude": obj['longitude']},
            "deliveryAddress": {"zipcode": obj['delivery_zip'], "latitude": obj['delivery_lat'], "longitude": obj['delivery_lng'] }
        }
        for obj in x
    ]