ApiTest.py

import json
import requests

response = requests.get("https://jsonplaceholder.typicode.com/todos")
todos = json.loads(response.text)

# Map of userId to number of complete TODOs for that user
todos_by_user = {}

# Increment complete TODOs count for each user.
for todo in todos:
    if todo["completed"]:
        try:
            # Increment the existing user's count.
            todos_by_user[todo["userId"]] += 1
        except KeyError:
            # This user has not been seen. Set their count to 1.
            todos_by_user[todo["userId"]] = 1

print(todos_by_user)

# Create a sorted list of (userId, num_complete) pairs.
top_users = sorted(todos_by_user.items(), 
                   key=lambda x: x[0], reverse=True)

print(top_users)