API для работы с ВКонтакте

import getpass
import pprint
import vk_api
 
def main():
    login = input("Login: ")
    password = getpass.getpass()
    #print(password)
 
    # ===== get_api =====
    vk_session = vk_api.VkApi(login, password)
    try:
        vk_session.auth()
    except vk_api.AuthError as error_msg:
        print(error_msg)
        return
    vk = vk_session.get_api()
    # ===== get_api =====
 
    main_user_id = input("main_user_id: ")
    main_user = vk.users.get(user_ids = main_user_id)
    print('main_user: ', main_user)
    friends_of_main_user_ids_list = vk.friends.get(user_id = main_user_id)
 
    friends_of_main_user_ids = ','.join(map(str, friends_of_main_user_ids_list['items']))
    friends_of_main_user = vk.users.get(user_ids = friends_of_main_user_ids, fields = 'city')
    #print(friends_of_main_user)
 
    city_user_dict = dict()
    for friend in friends_of_main_user:
        if friend.get('city') != None:
            city = friend['city']['title']
            if (city_user_dict.get(city) == None):
                city_user_dict[city] = []
                newdict = {key : friend[key] for key in ['id', 'first_name', 'last_name']}
                city_user_dict[city].append(newdict)
            else:
                newdict = {key : friend[key] for key in ['id', 'first_name', 'last_name']}
                city_user_dict[city].append(newdict)
 
    pprint.pprint(city_user_dict)
    main_city = input("main_city: ")
    if (city_user_dict.get(main_city) == None):
        print("City is not exist!")
        return
    main_city_user_ids = set()
    for friend in city_user_dict[main_city]:
        main_city_user_ids.add(friend["id"])
    print("main_user friends from main_city:")
    pprint.pprint(city_user_dict[main_city])
    #print(main_city_user_ids)
 
    for friend in city_user_dict[main_city]:
        print("user: ", friend["first_name"], friend["last_name"])
        try:
            friends_of_main_user_friend_ids_list = vk.friends.get(user_id = friend["id"])
        except vk_api.VkApiError as error_msg:
            print(error_msg)
            continue
        #print(friend_ids_of_main_user_friend)
        friends_of_main_user_friend_ids = ""
        for friend_id_of_friend in friends_of_main_user_friend_ids_list['items']:
            if friend_id_of_friend in main_city_user_ids:
                friends_of_main_user_friend_ids += str(friend_id_of_friend) + ','
        friends_of_main_user_friend_ids = friends_of_main_user_friend_ids[:-1]
        pprint.pprint(vk.users.get(user_ids = friends_of_main_user_friend_ids))
 
if __name__ == '__main__':
    main()