kireevys

def diff(a, b):
    """O(n) (для a) + O(n) (для b)"""
    return [i for i in a if i not in b]

def test_diff():
    a = [1, 2, 3]
    b = [3, 4, 5]

    result = diff(a, b)

kireevys

import os
import re
import requests
import time
from datetime import datetime
from uuid import uuid4


class GetBook:
    header = """<?xml version="1.0" encoding="UTF-8"?>