-

lab_1/main.py

+import math
+import timeit
+
+
+def rectangle_method(f, a, b, n, mode='left'):
+    h = (b - a) / n
+    points = [a + i * h for i in range(n + 1)]
+    if mode == 'left':
+        values = [f(points[i]) for i in range(n)]
+    else:
+        values = [f(points[i + 1]) for i in range(n)]
+    return h * sum(values)
+
+
+# метод трапеций
+# а и b - диапазон интегрирования
+# f - функция
+# n_iter - число разбиений
+def integrate(f, a, b, n):
+    h = (b - a) / n  # Шаг интегрирования
+    result = 0.5 * (f(a) + f(b))
+
+    for i in range(1, n):
+        x_i = a + i * h
+        result += f(x_i)
+
+    result *= h
+    return result
+
+
+if __name__ == '__main__':
+    print(integrate(math.sin, 0, 1, n=100))
+    print(rectangle_method(math.sin, 0, 1, 100, mode='left'))
+    # time = timeit.timeit("integrate(sin, 0, pi, n_iter=1000)",
+    # setup="from math import sin, pi", number=100) * 1000  # msec
+    # print(f"Время выполнения: {time} мс")

lab_1/readme.md

+Выполнила Таринская Татьяна
+

lab_1/test_integration.py

+import pytest
+
+from sem_7.lab_1.main import integrate
+from math import sin, pi
+
+
+@pytest.mark.parametrize("n_iter", [10**4, 10**5, 10**6])
+def test_integration_sin(n_iter):
+    a = 0
+    b = pi
+    result = integrate(sin, a, b, n_iter)
+    expected_result = 2.0  # Интеграл sin(x) от 0 до pi равен 2.0
+    assert abs(result - expected_result) < 1e-6
\ No newline at end of file

lab_1/threading_integrate.py

+import math
+import timeit
+import threading
+
+
+def integrate(f, a, b, n):
+    h = (b - a) / n
+    result = 0.5 * (f(a) + f(b))
+
+    for i in range(1, n):
+        x_i = a + i * h
+        result += f(x_i)
+
+    result *= h
+    return result
+
+
+class Integrator:
+    def __init__(self):
+        self.lock = threading.Lock()
+        self.result = 0.0
+
+    def integrate_subinterval(self, f, a, b, n):
+        self.lock.acquire()
+        try:
+            partial_result = integrate(f, a, b, n)
+            self.result += partial_result
+        finally:
+            self.lock.release()
+
+
+def main():
+    a = 0
+    b = 1
+    n = 1000
+    num_threads = 4
+    threads = []
+
+    integrator = Integrator()
+
+    for i in range(num_threads):
+        start = a + i * (b - a) / num_threads
+        end = a + (i + 1) * (b - a) / num_threads
+        thread = threading.Thread(target=integrator.integrate_subinterval,
+                                  args=(math.sin, start, end, n // num_threads))
+        threads.append(thread)
+
+    for thread in threads:
+        thread.start()
+
+    for thread in threads:
+        thread.join()
+
+    final_result = integrator.result
+    print("Интеграл:", final_result)
+
+
+if __name__ == "__main__":
+    execution_time = timeit.timeit(main, number=1)
+    print("Время выполнения:", execution_time, "секунд")

lab_2/1_1.py

+import threading
+
+#Напишите программу, которая создаёт несколько потоков, а затем выводит их имена изнутри каждого потока.
+def print_thread_name():
+    thread_name = threading.current_thread().name
+    print(f"Привет, я поток {thread_name}")
+
+def main():
+    num_threads = 5
+    threads = []
+
+    for i in range(num_threads):
+        thread = threading.Thread(target=print_thread_name)
+        threads.append(thread)
+        thread.start()
+
+    for thread in threads:
+        thread.join()
+
+if __name__ == "__main__":
+    main()

lab_2/1_2.py

+import requests
+import threading
+
+# Напишите программу для одновременной загрузки нескольких файлов (например картинок) с использованием потоков.
+# Используйте для скачивания одну из библиотек urllib, requests или wget.
+
+
+file_urls = [
+    "https://source.unsplash.com/user/c_v_r/1900x800",
+    "https://source.unsplash.com/user/c_v_r/100x100",
+]
+
+
+def download_file(url):
+    response = requests.get(url, stream=True)
+    if response.status_code == 200:
+        file_name = url.split("/")[-1]
+        with open(file_name, "wb") as file:
+            file.write(response.content)
+        print(f"Загружен файл: {file_name}")
+    else:
+        print(f"Не удалось загрузить файл: {url}")
+
+
+def main():
+    threads = []
+
+    for url in file_urls:
+        thread = threading.Thread(target=download_file, args=(url,))
+        threads.append(thread)
+        thread.start()
+
+    for thread in threads:
+        thread.join()
+
+
+if __name__ == "__main__":
+    main()

lab_2/1_3.py

+import requests
+import concurrent.futures
+
+# Напишите программу на Python, которая выполняет одновременные HTTP запросы с использованием потоков.
+# Используйте библиотеку requests.
+
+def make_request(url):
+    response = requests.get(url)
+    return response.text
+
+def main():
+    urls = [
+        "https://docs.python.org/3/",
+        "https://habr.com",
+        "https://tproger.ru"
+    ]
+
+    results = []
+
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        futures = {executor.submit(make_request, url): url for url in urls}
+
+        for future in concurrent.futures.as_completed(futures):
+            url = futures[future]
+            try:
+                response = future.result()
+                print(f"Запрос к {url} завершен.")
+                results.append(response)
+            except Exception as e:
+                print(f"Запрос к {url} завершился с ошибкой: {str(e)}")
+
+
+if __name__ == "__main__":
+    main()

lab_2/1_4.py

+import concurrent.futures
+
+# Напишите программу для вычисления факториала числа с использованием нескольких потоков.
+def factorial(n):
+    result = 1
+    for i in range(1, n + 1):
+        result *= i
+    return result
+
+def main():
+    n = int(input("Введите число для вычисления факториала: "))
+    with concurrent.futures.ThreadPoolExecutor() as executor:
+        future = executor.submit(factorial, n)
+        print("Вычисление факториала...")
+        result = future.result()
+
+    print(f"Факториал {n} равен {result}")
+
+if __name__ == "__main__":
+    main()

lab_2/1_5.py

+# Напишите программу для реализации многопоточного алгоритма быстрой сортировки.
+
+import threading
+
+def quicksort(arr):
+    if len(arr) <= 1:
+        return arr
+    pivot = arr[len(arr) // 2]
+    left = [x for x in arr if x < pivot]
+    middle = [x for x in arr if x == pivot]
+    right = [x for x in arr if x > pivot]
+    return quicksort(left) + middle + quicksort(right)
+
+def threaded_quicksort(arr, depth=0):
+    if len(arr) <= 1:
+        return arr
+
+    if depth > 2:
+        return quicksort(arr)
+
+    pivot = arr[len(arr) // 2]
+    left = [x for x in arr if x < pivot]
+    middle = [x for x in arr if x == pivot]
+    right = [x for x in arr if x > pivot]
+
+    left_thread = threading.Thread(target=threaded_quicksort, args=(left, depth + 1))
+    right_thread = threading.Thread(target=threaded_quicksort, args=(right, depth + 1))
+
+    left_thread.start()
+    right_thread.start()
+
+    left_thread.join()
+    right_thread.join()
+
+    return quicksort(left) + middle + quicksort(right)
+
+if __name__ == "__main__":
+    my_list = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]
+    sorted_list = threaded_quicksort(my_list)
+    print("Original List:", my_list)
+    print("Sorted List:", sorted_list)
+

lab_2/2_1.py

+# Дополните решение из лабораторной работы № 1 с кодом функции integrate.
+# Проведите замеры времени вычисления для разного числа потоков и процессов.
+
+import math
+import concurrent.futures as ftres
+from functools import partial
+
+
+def integrate(f, a, b, *, n=1000):
+    h = (b - a) / n  # Шаг интегрирования
+    result = 0.5 * (f(a) + f(b))
+
+    for i in range(1, n):
+        x_i = a + i * h
+        result += f(x_i)
+
+    result *= h
+    return result
+
+
+def foo():
+    n_jobs = 4
+    a = 0
+    b = 1
+    f = lambda x: x
+    executor = ftres.ThreadPoolExecutor(max_workers=n_jobs)
+    # future_result = executor.submit(identity,10)
+    # ai, bi = 0, 0
+    step = (b - a) / n_jobs
+
+    fs = [(a + i * step, a + (i + 1) * step) for i in range(n_jobs)]
+    print(step, fs)
+
+    spawn_lst = []
+    for i in fs:
+        spawn = partial(executor.submit, integrate, f, i[0], i[1])
+        spawn_lst.append(spawn)
+
+    res = []
+    for f in spawn_lst:
+        res.append(f())
+
+    print(res)
+
+    s = [r.result() for r in ftres.as_completed(res)]
+
+    print(sum(s))
+    return res
\ No newline at end of file

lab_2/2_2.py

+#  Напишите программу, которая будет симулировать банк с использованием потоков и объектов типа Lock. Реализуйте методы deposit и
+# withdraw, которые будут добавлять и снимать деньги со счета клиента
+# соответственно. Гарантируйте, что доступ к счету будет синхронизирован с помощью объекта типа Lock.
+
+import threading
+
+class BankAccount:
+    def __init__(self, balance=0):
+        self.balance = balance
+        self.lock = threading.Lock()
+
+    def deposit(self, amount):
+        with self.lock:
+            current_balance = self.balance
+            new_balance = current_balance + amount
+            self.balance = new_balance
+            print(f"Deposited {amount}. New balance: {new_balance}")
+
+    def withdraw(self, amount):
+        with self.lock:
+            current_balance = self.balance
+            if amount <= current_balance:
+                new_balance = current_balance - amount
+                self.balance = new_balance
+                print(f"Withdrew {amount}. New balance: {new_balance}")
+            else:
+                print("Insufficient funds.")
+
+def simulate_bank_operations(account):
+    for _ in range(5):
+        account.deposit(100)
+        account.withdraw(50)
+
+if __name__ == "__main__":
+    bank_account = BankAccount()
+
+    threads = []
+    for _ in range(3):
+        thread = threading.Thread(target=simulate_bank_operations, args=(bank_account,))
+        threads.append(thread)
+        thread.start()
+
+    for thread in threads:
+        thread.join()
+
+    print("Final balance:", bank_account.balance)

lab_2/2_3.py

+# Напишите программу, используя объекты типа Future, чтобы асинхронно скачать несколько изображений с Интернета. Каждое изображение должно быть загружено в отдельный поток и сохранено на
+# диск. Используйте семафор, чтобы ограничить количество одновременно выполняющихся потоков загрузки, чтобы избежать блокировки по IP от сервера или серверов.
+
+import concurrent.futures
+import requests
+import os
+from concurrent.futures import ThreadPoolExecutor, as_completed
+from threading import BoundedSemaphore
+
+
+image_urls = [
+    "https://source.unsplash.com/user/c_v_r/1900x800",
+    "https://source.unsplash.com/user/c_v_r/100x100",
+]
+
+output_folder = 'downloaded_images'
+os.makedirs(output_folder, exist_ok=True)
+semaphore = BoundedSemaphore(value=2)
+
+def download_image(url, filename):
+    response = requests.get(url, stream=True)
+    with open(filename, 'wb') as file:
+        for chunk in response.iter_content(chunk_size=1024):
+            if chunk:
+                file.write(chunk)
+
+def download_image_async(url, filename):
+    with semaphore:
+        download_image(url, filename)
+
+if __name__ == "__main__":
+    with ThreadPoolExecutor(max_workers=len(image_urls)) as executor:
+        futures = {executor.submit(download_image_async, url, os.path.join(output_folder, f"image_{i}.jpg")): url for i, url in enumerate(image_urls)}
+
+        for future in as_completed(futures):
+            url = futures[future]
+            try:
+                future.result()
+                print(f"Downloaded: {url}")
+            except Exception as e:
+                print(f"Failed to download {url}. Error: {e}")

lab_2/2_4.py

+# Создайте два потока, один из которых будет записывать данные в
+# файл, а другой ­ считывать данные с файла. Используйте объекты типа Future, чтобы синхронизировать потоки и избежать гонки потоков.
+
+import concurrent.futures
+
+
+data_to_write = "Hello, World!"
+file_name = "example.txt"
+
+def write_to_file(data, file_name):
+    with open(file_name, 'w') as file:
+        file.write(data)
+
+def read_from_file(file_name):
+    with open(file_name, 'r') as file:
+        return file.read()
+
+if __name__ == "__main__":
+    with concurrent.futures.ThreadPoolExecutor(max_workers=2) as executor:
+        future_write = executor.submit(write_to_file, data_to_write, file_name)
+        future_read = executor.submit(read_from_file, file_name)
+        concurrent.futures.wait([future_write, future_read], return_when=concurrent.futures.ALL_COMPLETED)
+        result_write = future_write.result()
+        result_read = future_read.result()
+
+        print(f"Data written to file: {result_write}")
+        print(f"Data read from file: {result_read}")

lab_2/2_5.py

+# : Напишите программу, которая создает 3 потока. Первый поток должен устанавливать состояние объекта типа Event каждую секунду.
+# Второй поток должен ждать наступления события и выводить сообщение "Event occurred". Третий поток должен выводить сообщение
+# "Event did not occur" каждую секунду, до тех пор, пока не наступит событие. Как только событие происходит, третий поток должен
+# остановиться.
+
+import threading
+import time
+
+def event_setter(event):
+    while True:
+        time.sleep(1)
+        event.set()
+
+def event_waiter(event):
+    print("Waiting for the event to occur...")
+    event.wait()
+    print("Event occurred")
+
+def event_checker(event):
+    while not event.is_set():
+        print("Event did not occur")
+        time.sleep(1)
+
+if __name__ == "__main__":
+    event = threading.Event()
+    setter_thread = threading.Thread(target=event_setter, args=(event,))
+    waiter_thread = threading.Thread(target=event_waiter, args=(event,))
+    checker_thread = threading.Thread(target=event_checker, args=(event,))
+
+    setter_thread.start()
+    waiter_thread.start()
+    checker_thread.start()
+
+    waiter_thread.join()
+    checker_thread.join()
+
+    print("All threads have finished.")

lab_2/2_6.py

+import threading
+
+class ThreadSafeQueue:
+    def __init__(self):
+        self.queue = []
+        self.lock = threading.RLock()
+
+    def enqueue(self, item):
+        with self.lock:
+            self.queue.append(item)
+
+    def dequeue(self):
+        with self.lock:
+            if not self.is_empty():
+                return self.queue.pop(0)
+            else:
+                return None
+
+    def is_empty(self):
+        with self.lock:
+            return len(self.queue) == 0
+
+def worker(queue, worker_id):
+    for i in range(5):
+        queue.enqueue(f"Task {i} from Worker {worker_id}")
+        print(f"Worker {worker_id} enqueued: Task {i}")
+
+        # Simulate some work
+        time.sleep(0.1)
+
+        item = queue.dequeue()
+        if item is not None:
+            print(f"Worker {worker_id} dequeued: {item}")
+        else:
+            print(f"Worker {worker_id} couldn't dequeue. Queue is empty.")
+
+if __name__ == "__main__":
+    import time
+
+    thread_safe_queue = ThreadSafeQueue()
+    workers = []
+    for i in range(3):
+        worker_thread = threading.Thread(target=worker, args=(thread_safe_queue, i))
+        workers.append(worker_thread)
+        worker_thread.start()
+
+    for worker_thread in workers:
+        worker_thread.join()
+
+    print("All worker threads have finished.")

lab_2/2_7.py

+# Сделайте два потока, представляющие сервер и клиент, где клиентский поток будет ждать готовности сервера, прежде чем отправлять
+# ему какой­либо запрос. Используйте threading.Barrier
+
+import threading
+import time
+
+class ServerClientCommunication:
+    def __init__(self):
+        self.barrier = threading.Barrier(2)  # Устанавливаем барьер для двух потоков
+
+    def server_function(self):
+        print("Server is waiting...")
+        self.barrier.wait()  # Ожидаем, пока клиент не приготовится
+        print("Server received request")
+
+    def client_function(self):
+        print("Client is preparing...")
+        time.sleep(2)  # Представим, что клиент выполняет какую-то подготовительную работу
+        print("Client is ready!")
+        self.barrier.wait()  # Сообщаем серверу, что клиент готов
+
+if __name__ == "__main__":
+    communication = ServerClientCommunication()
+    server_thread = threading.Thread(target=communication.server_function)
+    client_thread = threading.Thread(target=communication.client_function)
+    server_thread.start()
+    client_thread.start()
+    server_thread.join()
+    client_thread.join()

lab_2/2_8.py

+# Написать программу для параллельного поиска файла в директории.
+# Каждый поток должен обрабатывать свой фрагмент файлов директории и синхронизироваться с другими потоками, чтобы убедиться, что
+# файл найден только один раз. Как только первый файл по его шаблону
+# найден все потоки поиска завершаются.
+
+import os
+import threading
+
+class FileSearchThread(threading.Thread):
+    def __init__(self, directory, file_pattern):
+        super(FileSearchThread, self).__init__()
+        self.directory = directory
+        self.file_pattern = file_pattern
+        self.found_file = None
+        self.lock = threading.Lock()
+
+    def run(self):
+        for root, dirs, files in os.walk(self.directory):
+            for file in files:
+                if self.file_pattern in file:
+                    with self.lock:
+                        if self.found_file is None:
+                            self.found_file = os.path.join(root, file)
+                            print(f"File found by thread {threading.current_thread().name}: {self.found_file}")
+                            return
+
+if __name__ == "__main__":
+    target_directory = "/path/to/search"  # Укажите путь к директории, в которой нужно искать файл
+    file_pattern = "target_file.txt"  # Укажите имя или шаблон файла, который нужно найти
+
+    threads = []
+    for i in range(5):  # Выберите количество потоков по вашему усмотрению
+        thread = FileSearchThread(target_directory, file_pattern)
+        threads.append(thread)
+        thread.start()
+
+    for thread in threads:
+        thread.join()
+
+    found_files = [thread.found_file for thread in threads if thread.found_file is not None]
+
+    if found_files:
+        print("All threads completed. First file found:", found_files[0])
+    else:
+        print("File not found.")

lab_2/readme.md

+Выполнила Таринская Татьяна
+
+## Комплект 1: Потоки в Python.
+
+### 1.1
+Напишите программу, которая создаёт несколько потоков, а затем выводит их имена изнутри каждого потока.
+
+### 1.2
+Напишите программу для одновременной загрузки нескольких файлов (например картинок) с использованием потоков. Используйте для скачивания одну из библиотек urllib, requests или wget.
+
+### 1.3
+Напишите программу на Python, которая выполняет одновременные HTTP­запросы с использованием потоков. Используйте библиотеку requests.
+
+### 1.4
+Напишите программу для вычисления факториала числа с использованием нескольких потоков.
+
+### 1.5
+Напишите программу для реализации многопоточного алгоритма быстрой сортировки.
+
+## Комплект 2: Concurrency и Futures в Python.
+
+### 2.1
+Дополните решение из лабораторной работы № 1 с кодом функции integrate. Проведите замеры времени вычисления для разного числа потоков и процессов.
+
+### 2.2
+Напишите программу, симулирующую банк с использованием потоков и объектов типа Lock.
+
+### 2.3
+Напишите программу с использованием объектов типа Future для асинхронной загрузки изображений из Интернета.
+
+### 2.4
+Создайте два потока для записи и чтения данных из файла с использованием объектов типа Future.
+
+### 2.5
+Напишите программу с тремя потоками, один из которых устанавливает состояние объекта типа Event, второй ждет наступления события, а третий выводит сообщения в зависимости от наступления события.
+
+### 2.6
+Создайте программу с классом "очередь" (Queue), использующим рекурсивный блокировщик RLock.
+
+### 2.7
+Создайте программу с серверным и клиентским потоками, использующими threading.Barrier.
+
+### 2.8
+Написать программу для параллельного поиска файла в директории, синхронизируя потоки для избежания повторного поиска.
+

lab_3/1.4.py

+import asyncio
+import aiohttp
+import asyncpg
+import json
+
+# Улучшите предыдущую программу, сделав параллельно запрос к публичному веб-серверу и к любой публичной базе данных с распечаткой
+# результатов этих вызовов. Например сделайте запросы к публичному
+# ресурсу последовательностей РНК - RNACentral: https://rnacentral.
+# org/about-us.
+
+WEB_SERVER_URL = "https://rnacentral.org/api/v1/rna/"
+DB_CONNECTION_STRING = "postgres://reader:NWDMCE5xdipIjRrp@hh-pgsql-public.ebi.ac.uk:5432/pfmegrnargs"
+
+async def fetch_web_data():
+    async with aiohttp.ClientSession() as session:
+        async with session.get(WEB_SERVER_URL) as response:
+            data = await response.text()
+            json_data = json.loads(data)
+            return json_data
+
+async def fetch_db_data():
+    conn = await asyncpg.connect(DB_CONNECTION_STRING)
+    query = "SELECT * FROM rnc_database"
+    result = await conn.fetch(query)
+    await conn.close()
+    return result
+
+async def main():
+    web_data = await fetch_web_data()
+    db_data = await fetch_db_data()
+
+    print("Web Data:")
+    print(json.dumps(web_data, indent=4))
+    print("\nDatabase Data:")
+    for row in db_data:
+        print(row)
+
+if __name__ == "__main__":
+    asyncio.run(main())

lab_3/1.5.py

+#Создайте асинхронный веб-скрапер, используя aiohttp и asyncio, который собирает информацию из нескольких веб-страниц одновременно.
+# Вынесите код скрапера в отдельный класс. Загружайте список URLs из отдельного файла.
+
+import aiohttp
+import asyncio
+
+class WebScraper:
+    def __init__(self, urls_file):
+        self.urls_file = urls_file
+
+    async def fetch_url(self, session, url):
+        async with session.get(url) as response:
+            return await response.text()
+
+    async def scrape(self, url):
+        async with aiohttp.ClientSession() as session:
+            html = await self.fetch_url(session, url)
+            print(html)
+
+    async def scrape_all(self):
+        tasks = []
+        with open(self.urls_file, 'r') as file:
+            urls = file.read().splitlines()
+
+        for url in urls:
+            task = asyncio.create_task(self.scrape(url))
+            tasks.append(task)
+
+        await asyncio.gather(*tasks)
+
+if __name__ == "__main__":
+    urls_file = "urls.txt"
+    scraper = WebScraper(urls_file)
+
+    asyncio.run(scraper.scrape_all())

lab_3/1.6.py

+# Улучшите асинхронный веб-скрапер из предыдущей задачи. Преобразуйте его в класс асинхронного менеджера контекста
+# и используйте вместе с async with изнутри асинхронной функции main, которая
+# вызывается через asyncio.run(main()).
+
+import aiohttp
+import asyncio
+from bs4 import BeautifulSoup
+
+class AsyncWebScraper:
+    def __init__(self, urls_file):
+        self.urls_file = urls_file
+        self.urls = self.load_urls()
+
+    def load_urls(self):
+        with open(self.urls_file, 'r') as file:
+            return [line.strip() for line in file]
+
+    async def fetch(self, session, url):
+        async with session.get(url) as response:
+            return await response.text()
+
+    async def scrape_page(self, session, url):
+        html = await self.fetch(session, url)
+        soup = BeautifulSoup(html, 'html.parser')
+        title = soup.title.string
+        print(f"Title from {url}: {title}")
+
+    async def __aenter__(self):
+        self.session = aiohttp.ClientSession()
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.session.close()
+
+    async def scrape_all(self):
+        tasks = [self.scrape_page(self.session, url) for url in self.urls]
+        await asyncio.gather(*tasks)
+
+async def main():
+    async with AsyncWebScraper("urls.txt") as scraper:
+        await scraper.scrape_all()
+
+if __name__ == "__main__":
+    asyncio.run(main())

lab_3/1_1.py

+import asyncio
+import time
+
+# Создайте простую асинхронную функцию, которая в бесконечном цикле отображает текущее время с интервалом 1 секунда, и запустите ее с помощью asyncio.
+# Завершать программу можно через комбинацию клавиш типа Ctrl + C или Ctrl + Break.
+
+async def display_time():
+    try:
+        while True:
+            current_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
+            print(f"Текущее время: {current_time}")
+            await asyncio.sleep(1)
+    except KeyboardInterrupt:
+        pass
+
+async def main():
+    await display_time()
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+    try:
+        loop.run_until_complete(main())
+    except KeyboardInterrupt:
+        pass
+    finally:
+        loop.close()

lab_3/1_2.py

+import asyncio
+import time
+from termcolor import colored
+from pynput import keyboard
+
+# Улучшите предыдущую программу. Распечатывайте текущие дату и время в одной и той же строке (используйте символ возврата каретки '\r') разными цветами с помощью библиотеки termcolor.
+# Добавьте обработку события нажатия клавиши Esc с помощью библиотеки pynput, чтобы можно было выйти из программы.
+
+async def display_time():
+    try:
+        while True:
+            current_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
+            colored_time = colored(current_time, "blue")
+            print(f"\rТекущая дата и время: {colored_time}", end="")
+            await asyncio.sleep(1)
+    except asyncio.CancelledError:
+        pass
+
+async def main():
+    task = asyncio.create_task(display_time())
+
+    try:
+        await task
+    except KeyboardInterrupt:
+        pass
+    finally:
+        task.cancel()
+
+def on_key_release(key):
+    if key == keyboard.Key.esc:
+        print("\nВыход из программы.")
+        loop.stop()
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+
+    try:
+        loop.run_until_complete(main())
+        with keyboard.Listener(on_release=on_key_release) as listener:
+            loop.run_forever()
+    except KeyboardInterrupt:
+        pass
+    finally:
+        loop.close()
\ No newline at end of file

lab_3/1_3.py

+import asyncio
+
+# Разработайте программу, которая использует asyncio.gather для выполнения двух асинхронных задач параллельно
+# и затем обрабатывает результаты в отдельной функции в цикле.
+async def task1():
+    await asyncio.sleep(2)
+    return "Результат задачи 1"
+
+async def task2():
+    await asyncio.sleep(1)
+    return "Результат задачи 2"
+
+def process_results(results):
+    for result in results:
+        print(f"Получен результат: {result}")
+
+async def main():
+    results = await asyncio.gather(task1(), task2())
+    process_results(results)
+
+if __name__ == "__main__":
+    asyncio.run(main())

lab_3/1_7/client.py

+import asyncio
+
+import aiohttp
+import json
+
+async def main():
+    async with aiohttp.ClientSession() as session:
+        while True:
+            message = input("Введите сообщение (или 'exit' для завершения): ")
+            if message == 'exit':
+                break
+
+            data = {"message": message}
+            async with session.post('http://localhost:8080/echo', json=data) as response:
+                response_data = await response.json()
+                print("Получен ответ:", response_data["message"])
+
+if __name__ == "__main__":
+    loop = asyncio.get_event_loop()
+    loop.run_until_complete(main())

lab_3/1_7/server.py

+import aiohttp
+from aiohttp import web
+
+async def echo_handler(request):
+    data = await request.json()
+    response_data = {"message": data["message"]}
+    return web.json_response(response_data)
+
+app = web.Application()
+app.router.add_post('/echo', echo_handler)
+
+web.run_app(app, host='localhost', port=8080)

lab_3/readme.md

+
+Комплект 1: Библиотека Asyncio
+
+1.1
+Создайте простую асинхронную функцию, которая в бесконечном цикле отображает текущее время с интервалом 1 секунда, и запустите ее с помощью asyncio. Завершать программу можно через комбинацию клавиш типа Ctrl + C или Ctrl + Break.
+
+1.2
+Улучшите предыдущую программу. Распечатывайте текущие дату и время в одной и той же строке (используйте символ возврата каретки '\r') разными цветами с помощью библиотеки termcolor. Добавьте обработку события нажатия клавиши Esc с помощью библиотеки pynput, чтобы можно было выйти из программы.
+
+1.3
+Разработайте программу, которая использует asyncio.gather для выполнения двух асинхронных задач параллельно и затем обрабатывает результаты в отдельной функции в цикле.
+
+1.4
+Улучшите предыдущую программу, сделав параллельно запрос к публичному веб-серверу и к любой публичной базе данных с распечаткой результатов этих вызовов. Например, сделайте запросы к публичному ресурсу последовательностей РНК – RNACentral.
+
+1.5
+Создайте асинхронный веб-скрапер, используя aiohttp и asyncio, который собирает информацию из нескольких веб-страниц одновременно. Вынесите код скрапера в отдельный класс. Загружайте список URLs из отдельного файла.
+
+1.6
+Улучшите асинхронный веб-скрапер из предыдущей задачи. Преобразуйте его в класс асинхронного менеджера контекста и используйте вместе с async with изнутри асинхронной функции main, которая вызывается через asyncio.run(main()).
+
+1.7
+Реализуйте сервер и клиент с использованием библиотек asyncio и HTTPS протокола для отправки текстовых JSON сообщений, позволяющий передавать текстовые сообщения в обе стороны в цикле с клавиатуры в режиме echo.
\ No newline at end of file

lab_3/urls.txt

+https://docs.python.org/3/
+https://habr.com/ru/companies/simbirsoft/articles/701020/
+https://tproger.ru/translations/asynchronous-programming-in-python
\ No newline at end of file

lab_4_5_6/mysite/manage.py

+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == "__main__":
+    main()

lab_4_5_6/mysite/mysite/asgi.py

+"""
+ASGI config for mysite project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
+
+application = get_asgi_application()

lab_4_5_6/mysite/mysite/settings.py

+"""
+Django settings for mysite project.
+
+Generated by 'django-admin startproject' using Django 4.2.6.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/4.2/ref/settings/
+"""
+
+import os
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = "django-insecure-_l+pqxv$*jyi93923^e%#10-$p*v)#c)e&z$&&72^9!4x#=3kw"
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    
+    "corsheaders",
+
+    'django.contrib.sites',
+
+    'allauth',
+    'allauth.account',
+    'allauth.socialaccount',
+    'allauth.socialaccount.providers.google',
+
+    'crispy_forms',
+    'crispy_bootstrap5',
+    
+    'rest_framework',
+
+    'debug_toolbar',    
+    'django_extensions',
+    
+    "polls.apps.PollsConfig",
+]
+
+SITE_ID = 2 # !
+SOCIALACCOUNT_LOGIN_ON_GET = True
+SOCIALACCOUNT_AUTO_SIGNUP = True
+SOCIALACCOUNT_QUERY_EMAIL = True
+ACCOUNT_LOGOUT_ON_GET= True # !
+ACCOUNT_UNIQUE_EMAIL = True # !
+ACCOUNT_EMAIL_REQUIRED = True # !
+
+# LOGIN_REDIRECT_URL = '/'
+# LOGOUT_REDIRECT_URL = '/'
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+
+    "django.middleware.locale.LocaleMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "corsheaders.middleware.CorsMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    
+    "allauth.account.middleware.AccountMiddleware",
+
+    "django.contrib.messages.middleware.MessageMiddleware",
+    
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+    "debug_toolbar.middleware.DebugToolbarMiddleware",
+]
+
+ROOT_URLCONF = "mysite.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [BASE_DIR / "templates"],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+        },
+    },
+]
+
+CRISPY_ALLOWED_TEMPLATE_PACKS = "bootstrap5"
+CRISPY_TEMPLATE_PACK = "bootstrap5"
+
+
+WSGI_APPLICATION = "mysite.wsgi.application"
+
+
+# Database
+# https://docs.djangoproject.com/en/4.2/ref/settings/#databases
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": BASE_DIR / "db.sqlite3",
+    }
+}
+
+
+DEFAULT_FROM_EMAIL = 'polls-from-the-crypt@mail.ru'
+EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
+EMAIL_HOST = 'smtp.mail.ru'
+EMAIL_PORT = 465
+EMAIL_USE_SSL = True
+EMAIL_HOST_USER = os.environ.get('POLLS_EMAIL_HOST_USER')
+EMAIL_HOST_PASSWORD = os.environ.get('POLLS_EMAIL_HOST_PASSWORD')
+
+
+# Password validation
+# https://docs.djangoproject.com/en/4.2/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/4.2/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "Europe/Moscow"
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+LANGUAGES = (
+    ('en-us', 'English'),
+)
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/4.2/howto/static-files/
+
+STATIC_URL = "static/"
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/4.2/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+
+
+AUTHENTICATION_BACKENDS = [
+    'allauth.account.auth_backends.AuthenticationBackend'
+]
+
+SOCIALACCOUNT_PROVIDERS = {
+    'google': {
+        "APP": {
+            "client_id": "106106814332-su7fmhvccp9r885cukduov88puo5566f.apps.googleusercontent.com",
+            "secret": "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",
+            "key": ""
+        },
+        'SCOPE': [
+            'profile',
+            'email',
+        ],
+        'AUTH_PARAMS': {
+            'access_type': 'online',
+        }
+    }
+}
+
+
+
+# Debug Toolbar
+INTERNAL_IPS = [
+    # ...
+    "127.0.0.1",
+    # ...
+]
+
+LOGGING = {
+    "version": 1,
+    "disable_existing_loggers": False,
+    "handlers": {
+        "console": {
+            "class": "logging.StreamHandler",
+        },
+    },
+    "root": {
+        "handlers": ["console"],
+        "level": "INFO",
+    },
+}
+
+# SHOW_TOOLBAR_CALLBACK = 'debug_toolbar.middleware.show_toolbar'

lab_4_5_6/mysite/mysite/urls.py

+"""
+URL configuration for mysite project.
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/4.2/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+from django.contrib import admin
+from django.urls import include, path
+
+urlpatterns = [
+    path("", include("polls.urls", namespace='polls')),
+    path("admin/", admin.site.urls),
+    path('accounts/', include('allauth.urls')),
+    path("__debug__/", include("debug_toolbar.urls")),
+]

lab_4_5_6/mysite/mysite/wsgi.py

+"""
+WSGI config for mysite project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
+
+application = get_wsgi_application()

lab_4_5_6/mysite/polls/admin.py

+from django.contrib import admin
+
+from .models import Choice, Question
+
+
+class ChoiceInline(admin.TabularInline):
+    model = Choice
+    extra = 3
+
+
+class QuestionAdmin(admin.ModelAdmin):
+    fieldsets = [
+        (None, {"fields": ["question_text"]}),
+        ("Date information", {"fields": ["pub_date"], "classes": ["collapse"]}),
+    ]
+    inlines = [ChoiceInline]
+    list_display = ["question_text", "pub_date", "was_published_recently"]
+    list_filter = ["pub_date"]
+    search_fields = ["question_text"]
+
+
+admin.site.register(Question, QuestionAdmin)

lab_4_5_6/mysite/polls/apps.py

+from django.apps import AppConfig
+
+
+class PollsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "polls"

lab_4_5_6/mysite/polls/forms.py

+from django import forms
+from django.utils import timezone
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.models import User
+
+from django.contrib.sites.shortcuts import get_current_site
+from django.core.mail import EmailMessage
+from django.template.loader import render_to_string
+from django.utils.http import urlsafe_base64_encode, urlsafe_base64_decode
+from django.utils.encoding import force_bytes, force_str
+from django.contrib.auth.tokens import default_token_generator
+
+from .models import Question, Choice
+
+
+class QuestionForm(forms.ModelForm):
+    choices = forms.CharField(
+        label='Question Choices',
+        widget=forms.Textarea(attrs={'rows': 7}),
+        help_text='Enter the answer options, separating each option with a new line.'
+    )
+
+    class Meta:
+        model = Question
+        fields = ['question_text', 'choices']
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        if self.instance and self.instance.pk:
+            choices = '\n'.join(self.instance.choice_set.values_list('choice_text', flat=True))
+            self.initial['choices'] = choices
+
+    def clean_choices(self):
+        choices = self.cleaned_data.get('choices')
+        if choices:
+            # Разбить строки по переносу строки и удалить пустые элементы
+            choices_list = [choice.strip() for choice in choices.split('\n') if choice.strip()]
+            
+            # Проверить, чтобы было хотя бы два варианта ответа
+            if len(choices_list) < 2:
+                raise forms.ValidationError('Enter at least two answer options.')
+            
+            return choices_list
+
+        return []
+    
+    def save(self, commit=True):
+        question_instance = super().save(commit=False)
+        if not question_instance.pub_date:
+            question_instance.pub_date = timezone.now()
+        question_instance.save()
+        
+        Choice.objects.filter(question=question_instance).delete()
+
+        choices = self.cleaned_data.get('choices')
+        if choices:
+            for choice_text in choices:
+                Choice.objects.create(question=question_instance, choice_text=choice_text)
+
+        return question_instance
+
+
+class NewUserForm(UserCreationForm):
+    email = forms.EmailField(required=True)
+
+    class Meta:
+        model = User
+        fields = ("username", "email", "password1", "password2")
+
+    def save(self, request, commit=True):
+        user = super(NewUserForm, self).save(commit=False)
+        user.email = self.cleaned_data['email']
+        user.is_active = False
+        user.is_superuser = False
+        user.is_staff = False
+        if commit:
+            user.save()
+            self.send_verification_email(user, request)
+        return user
+    
+    def send_verification_email(self, user, request):
+        current_site = get_current_site(request)
+        mail_subject = 'Activate your account'
+        message = render_to_string(
+            'polls/verification_email.html',
+            {
+                'user': user,
+                'domain': current_site.domain,
+                'uid': urlsafe_base64_encode(force_bytes(user.pk)),
+                'token': default_token_generator.make_token(user),
+            }
+        )
+        email = EmailMessage(mail_subject, message, to=[user.email])
+        email.content_subtype = "html"
+        email.send()

lab_4_5_6/mysite/polls/migrations/0001_initial.py

+# Generated by Django 4.2.6 on 2023-10-11 12:23
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="Question",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("question_text", models.CharField(max_length=200)),
+                ("pub_date", models.DateTimeField(verbose_name="date published")),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Choice",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("choice_text", models.CharField(max_length=200)),
+                ("votes", models.IntegerField(default=0)),
+                (
+                    "question",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE, to="polls.question"
+                    ),
+                ),
+            ],
+        ),
+    ]

lab_4_5_6/mysite/polls/models.py

+from django.db import models
+from django.utils import timezone
+from django.contrib import admin
+
+import datetime
+
+class Question(models.Model):
+    question_text = models.CharField(max_length=200)
+    pub_date = models.DateTimeField("date published", blank=True, null=True)
+    
+    @admin.display(
+        boolean=True,
+        ordering="pub_date",
+        description="Published recently?",
+    )
+    def was_published_recently(self):
+        now = timezone.now()
+        return now - datetime.timedelta(days=1) <= self.pub_date <= now
+    
+    def __str__(self):
+        return self.question_text
+
+
+class Choice(models.Model):
+    question = models.ForeignKey(Question, on_delete=models.CASCADE)
+    choice_text = models.CharField(max_length=200)
+    votes = models.IntegerField(default=0)
+    
+    def __str__(self):
+        return self.choice_text

lab_4_5_6/mysite/polls/serializers.py

+from rest_framework import serializers
+from .models import Question
+
+
+class QuestionSerializer(serializers.ModelSerializer):
+    id = serializers.IntegerField()
+    
+    class Meta:
+        model = Question
+        fields = '__all__'

lab_4_5_6/mysite/polls/static/polls/style.css

+@font-face {
+    font-family: 'Royal';
+    src: url('fonts/Royal.ttf');
+}
+@font-face {
+    font-family: 'CloisterBlack-Light';
+    src: url('fonts/CloisterBlackLight.ttf');
+}
+@font-face {
+    font-family: 'WitcherHandwriting-Regular';
+    src: url('fonts/WitcherHandwriting-Regular.otf') format("opentype");
+}
+@font-face {
+    font-family: 'HalloweenNightmare';
+    src: url('fonts/HalloweenNightmare.otf') format("opentype");
+}
+
+body {
+    background: white url("images/background.png") no-repeat;
+}
+
+.page-header {
+    background-color: #aa00ff;
+    margin-top: 0;
+    padding: 20px 20px 20px 40px;
+}
+
+.page-header h1, .page-header h1 a, .page-header h1 a:visited, .page-header h1 a:active,
+.page-header h2, .page-header h2 a, .page-header h2 a:visited, .page-header h2 a:active,
+.page-header h3, .page-header h3 a, .page-header h3 a:visited, .page-header h3 a:active
+.page-header h4, .page-header h4 a, .page-header h4 a:visited, .page-header h4 a:active {
+    color: #ffffff;
+    text-decoration: none;
+}
+
+.page-header h1 {
+    font-size: 48pt;
+    font-family: 'CloisterBlack-Light'
+}
+
+.page-header h4 {
+    font-size: 24pt;
+    font-family: 'WitcherHandwriting-Regular';
+}
+
+.content {
+    margin-left: 40px;
+}
+
+h1, h2, h3, h4 {
+    font-family: Avantgarde, TeX Gyre Adventor, URW Gothic L, sans-serif;
+}
+
+.poll h4, .poll h4 a, .pollr h4 a:visited, .poll h4 a:active {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    text-decoration: none;
+    font-size: 28pt;
+}
+
+.content legend h1 {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    text-decoration: none;
+    font-size: 32pt;
+}
+
+.content form fieldset label {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    font-size: 20pt;
+}
+
+.content form .btn-dark {
+    color: #ffffff;
+    font-family: 'HalloweenNightmare';
+    font-size: 20pt;
+}
+
+.date {
+    color: #535353;
+    font-family: 'HalloweenNightmare';
+    font-size: 16pt;
+}
+
+.save {
+    float: right;
+}
+
+.poll-form textarea, .poll-form input {
+    width: 100%;
+}
+
+.top-menu, .top-menu:hover, .top-menu:visited {
+    color: #ffffff;
+    float: right;
+    font-size: 26pt;
+    margin-right: 20px;
+}
+
+.top-menu-welcome, .top-menu-welcome:hover, .top-menu-welcome:visited {
+    color: #ffffff;
+    float: right;
+    font-size: 13pt;
+    margin-right: 20px;
+    text-decoration: none;
+}
+
+.poll {
+    margin-bottom: 70px;
+}
+
+.poll h1 a, .poll h1 a:visited {
+    color: #000000;
+}
+
+li a {
+    color: green;
+}

lab_4_5_6/mysite/polls/templates/polls/account_activation_failure.html

+{% extends "polls/base.html" %}
+
+{% block content %}      
+
+    <h1>Account Activation Failed</h1>
+    <p>We were unable to activate your account. The activation link is invalid or has expired.</p>
+    <p>Please <a href="{% url 'polls:register' %}">register</a> again or contact support if you need assistance.</p>
+
+{% endblock %}

lab_4_5_6/mysite/polls/templates/polls/account_activation_success.html

+{% extends "polls/base.html" %}
+
+{% block content %}      
+
+    <h1>Account Activation Successful</h1>
+    <p>Congratulations! Your account has been successfully activated.</p>
+    <p>You may now <a href="{% url 'polls:login' %}">login</a> to start using your account. Enjoy!</p>
+
+{% endblock %}

lab_4_5_6/mysite/polls/templates/polls/base.html

+{% load static %}
+<html>
+    <head>
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+        <title>Polls</title>
+        <!-- Bootstrap CSS -->
+        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
+        <link rel="stylesheet" type="text/css" href="{% static 'style.css' %}" />
+    </head>
+    <body>
+                <nav class="navbar navbar-default" role="navigation">
+            <div class="container">
+                <!-- Brand and toggle get grouped for better mobile display -->
+                <div class="navbar-header">
+                    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
+                        <span class="sr-only">Toggle navigation</span>
+                        <span class="icon-bar"></span>
+                        <span class="icon-bar"></span>
+                        <span class="icon-bar"></span>
+                    </button>
+                    <a class="navbar-brand" href="#">Poll Application</a>
+                </div>
+
+                <!-- Collect the nav links, forms, and other content for toggling -->
+                <div class="collapse navbar-collapse navbar-ex1-collapse">
+                    <ul class="nav navbar-nav">
+                        <li><a href="#">Home</a></li>
+                        <li><a href="#">Create</a></li>
+                         {% if user.is_authenticated %}
+                        {% if user.is_staff %}
+                        <li><a href="{% url 'polls:poll_new' %}" class="top-menu">New</a></li>
+                        {% endif %}
+                        <li><a href="{% url 'polls:logout' %}" class="top-menu">Logout</a></li>
+                        <a href="#" class="top-menu-welcome">
+                        <span style="color: white">Welcome, {{user.username}}</span></a>
+                        {% else %}
+                        <li><a href="{% url 'polls:register' %}" class="top-menu">Register</a></li>
+                        <li><a href="{% url 'polls:login' %}" class="top-menu">Login</a></li>
+                        {% endif %}
+                    </ul>
+                </div><!-- /.navbar-collapse -->
+            </div>
+        </nav>
+        <!-- Messages -->
+        <div class="container">
+            {% if messages %}
+                <div class="alert alert-info alert-dismissible fade show" role="alert">
+                    {% for message in messages %}
+                        {{ message }}
+                    {% endfor %}
+                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                </div>
+            {% endif %}
+        </div>
+
+        <div class="content container mt-4">
+            <div class="row">
+                <div class="col-md-8">
+                    {% block content %}
+                    {% endblock %}
+                </div>
+            </div>
+        </div>
+
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
+    </body>
+</html>
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/detail.html

+{% extends 'polls/base.html' %}
+
+{% load crispy_forms_tags %}
+
+{% block content %}
+    <form action="{% url 'polls:vote' question.id %}" method="post">
+        {% csrf_token %}
+        <fieldset>
+            <legend>
+                <h1>{{ question.question_text }}</h1>
+                {% if question.pub_date %}
+                    <div class="date">
+                        {{ question.pub_date }}
+                    </div>
+                {% endif %}
+                {% if user.is_staff %}
+                    <a class="btn btn-default" href="{% url 'polls:poll_edit' pk=question.pk %}">
+                        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-pencil" viewBox="0 0 16 16">
+                            <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z"/>
+                        </svg>
+                    </a>
+                {% endif %}
+            </legend>
+            {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
+            {% for choice in question.choice_set.all %}
+                <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}">
+                <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br>
+            {% endfor %}
+        </fieldset>
+        <input type="submit" class="btn btn-dark" value="Vote">
+    </form>
+{% endblock %}
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/index.html

+{% extends 'polls/base.html' %}
+
+{% block content %}
+    {% if latest_question_list %}
+        {% for question in latest_question_list %}
+            <div class="poll">
+                <h4><a href="{% url 'polls:detail' pk=question.pk %}">{{ question.question_text|linebreaksbr }}</a></h4>
+                <div class="date">
+                    <p>Date: '{{ question.pub_date }}'</p>
+                </div>
+                <hr>
+            </div>
+        {% endfor %}
+    {% else %}
+        <p>No polls are available.</p>
+    {% endif %}
+{% endblock %}
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/login.html

+{% extends "polls/base.html" %}
+{% block content %}
+{% load socialaccount %}
+    {% load crispy_forms_tags %}
+
+    <!--Login-->
+    <div class="py-5">
+        <h1>Login</h1> {{slogan}}
+        <form method="POST">
+            {% csrf_token %}
+            {{ login_form|crispy }}
+            <button class="btn btn-primary" type="submit">Login</button>
+        </form>
+        <p class="text-center">Don't have an account? <a href="{% url 'polls:register' %}">Create an account</a>.</p>
+    </div>
+    <img src="https://developers.google.com/identity/images/g-logo.png"  alt="Google Icon">
+   <a href="{% provider_login_url 'google' %}?next=/">
+        Login with Google
+    </a>
+{% endblock %}
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/poll_new_edit.html

+{% extends 'polls/base.html' %}
+
+{% block content %}
+
+    {% load crispy_forms_tags %}
+
+    <h1>Poll</h1>
+    <form method="POST" class="poll-form">{% csrf_token %}
+        {{ form|crispy }}
+        <button type="submit" class="save btn btn-info">Save</button>
+    </form>
+{% endblock %}

lab_4_5_6/mysite/polls/templates/polls/register.html

+{% extends "polls/base.html" %}
+
+{% block content %} 
+
+    {% load crispy_forms_tags %}         
+
+    <div class="py-5">
+        <h1>Register</h1>
+        <form method="POST">
+            {% csrf_token %}
+            {{ register_form|crispy }}                    
+            <button class="btn btn-primary" type="submit">Register</button>
+        </form>
+        <p class="text-center">If you already have an account, <a href="{% url 'polls:login' %}">login</a> instead.</p>
+    </div>
+
+{% endblock %}
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/results.html

+{% extends 'polls/base.html' %}
+
+{% block content %}
+    <h1>{{ question.question_text }}</h1>
+
+    <ul>
+    {% for choice in question.choice_set.all %}
+        <li>{{ choice.choice_text }} -- {{ choice.votes }} vote{{ choice.votes|pluralize }}</li>
+    {% endfor %}
+    </ul>
+
+    <a href="{% url 'polls:detail' question.id %}">Vote again?</a>
+{% endblock %}
\ No newline at end of file

lab_4_5_6/mysite/polls/templates/polls/verification_email.html

+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>Account Verification</title>
+</head>
+<body>
+    <p>Dear {{ user.username }},</p>
+    
+    <p>Thank you for creating an account. Please click the link below to activate your account:</p>
+    
+    <a href="http://{{ domain }}{% url 'polls:activate' uidb64=uid token=token %}">Activate Account</a>
+    
+    <p>If you did not create this account, you can safely ignore this email.</p>
+    
+    <p>Best regards,</p>
+    <p>Your Polls from the Crypt</p>
+</body>
+</html>
\ No newline at end of file

lab_4_5_6/mysite/polls/tests.py

+import datetime
+
+from django.test import TestCase
+from django.urls import reverse
+from django.utils import timezone
+
+from .models import Question
+
+
+def create_question(question_text, days):
+    """
+    Create a question with the given `question_text` and published the
+    given number of `days` offset to now (negative for questions published
+    in the past, positive for questions that have yet to be published).
+    """
+    time = timezone.now() + datetime.timedelta(days=days)
+    return Question.objects.create(question_text=question_text, pub_date=time)
+
+
+class QuestionIndexViewTests(TestCase):
+    def test_no_questions(self):
+        """
+        If no questions exist, an appropriate message is displayed.
+        """
+        response = self.client.get(reverse("polls:index"))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "No polls are available.")
+        self.assertQuerySetEqual(response.context["latest_question_list"], [])
+
+    def test_past_question(self):
+        """
+        Questions with a pub_date in the past are displayed on the
+        index page.
+        """
+        question = create_question(question_text="Past question.", days=-30)
+        response = self.client.get(reverse("polls:index"))
+        self.assertQuerySetEqual(
+            response.context["latest_question_list"],
+            [question],
+        )
+
+    def test_future_question(self):
+        """
+        Questions with a pub_date in the future aren't displayed on
+        the index page.
+        """
+        create_question(question_text="Future question.", days=30)
+        response = self.client.get(reverse("polls:index"))
+        self.assertContains(response, "No polls are available.")
+        self.assertQuerySetEqual(response.context["latest_question_list"], [])
+
+    def test_future_question_and_past_question(self):
+        """
+        Even if both past and future questions exist, only past questions
+        are displayed.
+        """
+        question = create_question(question_text="Past question.", days=-30)
+        create_question(question_text="Future question.", days=30)
+        response = self.client.get(reverse("polls:index"))
+        self.assertQuerySetEqual(
+            response.context["latest_question_list"],
+            [question],
+        )
+
+    def test_two_past_questions(self):
+        """
+        The questions index page may display multiple questions.
+        """
+        question1 = create_question(question_text="Past question 1.", days=-30)
+        question2 = create_question(question_text="Past question 2.", days=-5)
+        response = self.client.get(reverse("polls:index"))
+        self.assertQuerySetEqual(
+            response.context["latest_question_list"],
+            [question2, question1],
+        )
+
+
+class QuestionDetailViewTests(TestCase):
+    def test_future_question(self):
+        """
+        The detail view of a question with a pub_date in the future
+        returns a 404 not found.
+        """
+        future_question = create_question(question_text="Future question.", days=5)
+        url = reverse("polls:detail", args=(future_question.id,))
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 404)
+
+    def test_past_question(self):
+        """
+        The detail view of a question with a pub_date in the past
+        displays the question's text.
+        """
+        past_question = create_question(question_text="Past Question.", days=-5)
+        url = reverse("polls:detail", args=(past_question.id,))
+        response = self.client.get(url)
+        self.assertContains(response, past_question.question_text)
+
+
+class QuestionModelTests(TestCase):
+    def test_was_published_recently_with_future_question(self):
+        """
+        was_published_recently() returns False for questions whose pub_date
+        is in the future.
+        """
+        time = timezone.now() + datetime.timedelta(days=30)
+        future_question = Question(pub_date=time)
+        self.assertIs(future_question.was_published_recently(), False)
+    
+    def test_was_published_recently_with_old_question(self):
+        """
+        was_published_recently() returns False for questions whose pub_date
+        is older than 1 day.
+        """
+        time = timezone.now() - datetime.timedelta(days=1, seconds=1)
+        old_question = Question(pub_date=time)
+        self.assertIs(old_question.was_published_recently(), False)
+
+
+    def test_was_published_recently_with_recent_question(self):
+        """
+        was_published_recently() returns True for questions whose pub_date
+        is within the last day.
+        """
+        time = timezone.now() - datetime.timedelta(hours=23, minutes=59, seconds=59)
+        recent_question = Question(pub_date=time)
+        self.assertIs(recent_question.was_published_recently(), True)
\ No newline at end of file

lab_4_5_6/mysite/polls/urls.py

+from django.urls import path, include
+
+from . import views
+
+app_name = 'polls'
+urlpatterns = [
+    # ex: /polls/
+    path("", views.IndexView.as_view(), name="index"),
+    # ex: /polls/5/
+    path("<int:pk>/", views.DetailView.as_view(), name="detail"),
+    # ex: /polls/5/results/
+    path("<int:pk>/results/", views.ResultsView.as_view(), name="results"),
+    # ex: /polls/5/vote/
+    path("<int:question_id>/vote/", views.VoteView.as_view(), name="vote"),
+    path("new/", views.PollNewView.as_view(), name="poll_new"),
+    # ex: /polls/5/edit/
+    path('<int:pk>/edit/', views.PollEditView.as_view(), name='poll_edit'),
+    path("login", views.LoginView.as_view(), name="login"),
+    path("logout", views.LogoutView.as_view(), name="logout"),
+    path("register", views.AccountRegisterView.as_view(), name="register"),
+    path("activate/<uidb64>/<token>", views.AccountActivationView.as_view(), name="activate"),
+]

lab_4_5_6/mysite/templates/admin/base_site.html

+{% extends "admin/base.html" %}
+
+{% block title %}{% if subtitle %}{{ subtitle }} | {% endif %}{{ title }} | {{ site_title|default:_('Django site admin') }}{% endblock %}
+
+{% block branding %}
+<h1 id="site-name"><a href="{% url 'admin:index' %}">Polls Administration</a></h1>
+{% endblock %}
+
+{% block nav-global %}{% endblock %}

lab_4_5_6/mysite/templates/admin/index.html

+{% extends "admin/base_site.html" %}
+{% load i18n static %}
+
+{% block extrastyle %}{{ block.super }}<link rel="stylesheet" href="{% static "admin/css/dashboard.css" %}">{% endblock %}
+
+{% block coltype %}colMS{% endblock %}
+
+{% block bodyclass %}{{ block.super }} dashboard{% endblock %}
+
+{% block nav-breadcrumbs %}{% endblock %}
+
+{% block nav-sidebar %}{% endblock %}
+
+{% block content %}
+<div id="content-main">
+  {% include "admin/app_list.html" with app_list=app_list show_changelinks=True %}
+</div>
+{% endblock %}
+
+{% block sidebar %}
+<div id="content-related">
+    <div class="module" id="recent-actions-module">
+        <h2>{% translate 'Recent actions' %}</h2>
+        <h3>{% translate 'My actions' %}</h3>
+            {% load log %}
+            {% get_admin_log 10 as admin_log for_user user %}
+            {% if not admin_log %}
+            <p>{% translate 'None available' %}</p>
+            {% else %}
+            <ul class="actionlist">
+            {% for entry in admin_log %}
+            <li class="{% if entry.is_addition %}addlink{% endif %}{% if entry.is_change %}changelink{% endif %}{% if entry.is_deletion %}deletelink{% endif %}">
+                {% if entry.is_deletion or not entry.get_admin_url %}
+                    {{ entry.object_repr }}
+                {% else %}
+                    <a href="{{ entry.get_admin_url }}">{{ entry.object_repr }}</a>
+                {% endif %}
+                <br>
+                {% if entry.content_type %}
+                    <span class="mini quiet">{% filter capfirst %}{{ entry.content_type.name }}{% endfilter %}</span>
+                {% else %}
+                    <span class="mini quiet">{% translate 'Unknown content' %}</span>
+                {% endif %}
+            </li>
+            {% endfor %}
+            </ul>
+            {% endif %}
+    </div>
+</div>
+{% endblock %}

lab_4_5_6/readme.md

+Данный проект сделан по примеру из официального туториала:
+
+https://docs.djangoproject.com/en/4.2/intro/tutorial01/
+
+Проект состоит из двух частей:
+
+Общедоступный сайт, который позволяет людям просматривать опросы и голосовать в них. http://127.0.0.1:8000/polls/
+
+Сайт администратора, который позволяет добавлять, изменять и удалять опросы. http://127.0.0.1:8000/admin/
+
+Есть возможность залогиниться через гугл.

lab_4_5_6/requirements.txt

+asgiref==3.7.2
+blessed==1.20.0
+bpython==0.24
+certifi==2023.7.22
+cffi==1.16.0
+charset-normalizer==3.3.0
+contourpy==1.2.0
+crispy-bootstrap5==0.7
+cryptography==41.0.5
+curtsies==0.4.2
+cwcwidth==0.1.9
+cycler==0.12.1
+defusedxml==0.7.1
+Django==4.2.7
+django-allauth==0.58.2
+django-cors-headers==4.3.1
+django-crispy-forms==2.1
+django-debug-toolbar==4.2.0
+django-extensions==3.2.3
+djangorestframework==3.14.0
+fonttools==4.45.0
+greenlet==3.0.0
+idna==3.4
+kiwisolver==1.4.5
+Markdown==3.5
+MarkupSafe==2.1.3
+matplotlib==3.8.2
+numpy==1.26.2
+oauthlib==3.2.2
+packaging==23.2
+Pillow==10.1.0
+pycparser==2.21
+Pygments==2.16.1
+PyJWT==2.8.0
+pyparsing==3.1.1
+python-dateutil==2.8.2
+python3-openid==3.2.0
+pytz==2023.3.post1
+pyxdg==0.28
+requests==2.31.0
+requests-oauthlib==1.3.1
+six==1.16.0
+sqlparse==0.4.4
+urllib3==2.0.6
+wcwidth==0.2.8
+Werkzeug==3.0.1

lab_7/Dockerfile

+# pull the official base image
+FROM python:3.8.3-alpine
+
+# set environment variables
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# set work directory
+WORKDIR /code
+
+# install dependencies
+COPY requirements.txt /code/
+RUN pip install -r requirements.txt
+
+# copy project
+COPY . /code/
+
+EXPOSE 8000
+
+CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

lab_7/django-polls/MANIFEST.in

+include LICENSE
+include README.rst
+recursive-include polls/static *
+recursive-include polls/templates *
+recursive-include docs *
\ No newline at end of file

lab_7/django-polls/README.rst

+=====
+Создание переиспользуемого приложения на Django
+=====

lab_7/django-polls/django_polls.egg-info/requires.txt

+Django>=3.2

lab_7/django-polls/polls/admin.py

+from django.contrib import admin
+
+from .models import Choice, Question
+
+
+class ChoiceInline(admin.TabularInline):
+    model = Choice
+    extra = 3
+
+
+class QuestionAdmin(admin.ModelAdmin):
+    fieldsets = [
+        (None, {"fields": ["question_text"]}),
+        ("Date information", {"fields": ["pub_date"], "classes": ["collapse"]}),
+    ]
+    inlines = [ChoiceInline]
+    list_display = ["question_text", "pub_date", "was_published_recently"]
+    list_filter = ["pub_date"]
+    search_fields = ["question_text"]
+
+
+admin.site.register(Question, QuestionAdmin)

lab_7/django-polls/polls/apps.py

+from django.apps import AppConfig
+
+
+class PollsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "polls"

lab_7/django-polls/polls/forms.py

+from django import forms
+from django.utils import timezone
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.models import User
+
+from django.contrib.sites.shortcuts import get_current_site
+from django.core.mail import EmailMessage
+from django.template.loader import render_to_string
+from django.utils.http import urlsafe_base64_encode, urlsafe_base64_decode
+from django.utils.encoding import force_bytes, force_str
+from django.contrib.auth.tokens import default_token_generator
+
+from .models import Question, Choice
+
+
+class QuestionForm(forms.ModelForm):
+    choices = forms.CharField(
+        label='Question Choices',
+        widget=forms.Textarea(attrs={'rows': 7}),
+        help_text='Enter the answer options, separating each option with a new line.'
+    )
+
+    class Meta:
+        model = Question
+        fields = ['question_text', 'choices']
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        if self.instance and self.instance.pk:
+            choices = '\n'.join(self.instance.choice_set.values_list('choice_text', flat=True))
+            self.initial['choices'] = choices
+
+    def clean_choices(self):
+        choices = self.cleaned_data.get('choices')
+        if choices:
+            # Разбить строки по переносу строки и удалить пустые элементы
+            choices_list = [choice.strip() for choice in choices.split('\n') if choice.strip()]
+            
+            # Проверить, чтобы было хотя бы два варианта ответа
+            if len(choices_list) < 2:
+                raise forms.ValidationError('Enter at least two answer options.')
+            
+            return choices_list
+
+        return []
+    
+    def save(self, commit=True):
+        question_instance = super().save(commit=False)
+        if not question_instance.pub_date:
+            question_instance.pub_date = timezone.now()
+        question_instance.save()
+        
+        Choice.objects.filter(question=question_instance).delete()
+
+        choices = self.cleaned_data.get('choices')
+        if choices:
+            for choice_text in choices:
+                Choice.objects.create(question=question_instance, choice_text=choice_text)
+
+        return question_instance
+
+
+class NewUserForm(UserCreationForm):
+    email = forms.EmailField(required=True)
+
+    class Meta:
+        model = User
+        fields = ("username", "email", "password1", "password2")
+
+    def save(self, request, commit=True):
+        user = super(NewUserForm, self).save(commit=False)
+        user.email = self.cleaned_data['email']
+        user.is_active = False
+        user.is_superuser = False
+        user.is_staff = False
+        if commit:
+            user.save()
+            self.send_verification_email(user, request)
+        return user
+    
+    def send_verification_email(self, user, request):
+        current_site = get_current_site(request)
+        mail_subject = 'Activate your account'
+        message = render_to_string(
+            'polls/verification_email.html',
+            {
+                'user': user,
+                'domain': current_site.domain,
+                'uid': urlsafe_base64_encode(force_bytes(user.pk)),
+                'token': default_token_generator.make_token(user),
+            }
+        )
+        email = EmailMessage(mail_subject, message, to=[user.email])
+        email.content_subtype = "html"
+        email.send()

lab_7/django-polls/polls/migrations/0001_initial.py

+# Generated by Django 4.2.6 on 2023-10-11 12:23
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="Question",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("question_text", models.CharField(max_length=200)),
+                ("pub_date", models.DateTimeField(verbose_name="date published")),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Choice",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("choice_text", models.CharField(max_length=200)),
+                ("votes", models.IntegerField(default=0)),
+                (
+                    "question",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE, to="polls.question"
+                    ),
+                ),
+            ],
+        ),
+    ]

lab_7/django-polls/polls/models.py

+from django.db import models
+from django.utils import timezone
+from django.contrib import admin
+
+import datetime
+
+class Question(models.Model):
+    question_text = models.CharField(max_length=200)
+    pub_date = models.DateTimeField("date published", blank=True, null=True)
+    
+    @admin.display(
+        boolean=True,
+        ordering="pub_date",
+        description="Published recently?",
+    )
+    def was_published_recently(self):
+        now = timezone.now()
+        return now - datetime.timedelta(days=1) <= self.pub_date <= now
+    
+    def __str__(self):
+        return self.question_text
+
+
+class Choice(models.Model):
+    question = models.ForeignKey(Question, on_delete=models.CASCADE)
+    choice_text = models.CharField(max_length=200)
+    votes = models.IntegerField(default=0)
+    
+    def __str__(self):
+        return self.choice_text

lab_7/django-polls/polls/static/polls/style.css

+@font-face {
+    font-family: 'Royal';
+    src: url('fonts/Royal.ttf');
+}
+@font-face {
+    font-family: 'CloisterBlack-Light';
+    src: url('fonts/CloisterBlackLight.ttf');
+}
+@font-face {
+    font-family: 'WitcherHandwriting-Regular';
+    src: url('fonts/WitcherHandwriting-Regular.otf') format("opentype");
+}
+@font-face {
+    font-family: 'HalloweenNightmare';
+    src: url('fonts/HalloweenNightmare.otf') format("opentype");
+}
+
+body {
+    background: white url("images/background.png") no-repeat;
+}
+
+.page-header {
+    background-color: #aa00ff;
+    margin-top: 0;
+    padding: 20px 20px 20px 40px;
+}
+
+.page-header h1, .page-header h1 a, .page-header h1 a:visited, .page-header h1 a:active,
+.page-header h2, .page-header h2 a, .page-header h2 a:visited, .page-header h2 a:active,
+.page-header h3, .page-header h3 a, .page-header h3 a:visited, .page-header h3 a:active
+.page-header h4, .page-header h4 a, .page-header h4 a:visited, .page-header h4 a:active {
+    color: #ffffff;
+    text-decoration: none;
+}
+
+.page-header h1 {
+    font-size: 48pt;
+    font-family: 'CloisterBlack-Light'
+}
+
+.page-header h4 {
+    font-size: 24pt;
+    font-family: 'WitcherHandwriting-Regular';
+}
+
+.content {
+    margin-left: 40px;
+}
+
+h1, h2, h3, h4 {
+    font-family: Avantgarde, TeX Gyre Adventor, URW Gothic L, sans-serif;
+}
+
+.poll h4, .poll h4 a, .pollr h4 a:visited, .poll h4 a:active {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    text-decoration: none;
+    font-size: 28pt;
+}
+
+.content legend h1 {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    text-decoration: none;
+    font-size: 32pt;
+}
+
+.content form fieldset label {
+    color: #000000;
+    font-family: 'HalloweenNightmare';
+    font-size: 20pt;
+}
+
+.content form .btn-dark {
+    color: #ffffff;
+    font-family: 'HalloweenNightmare';
+    font-size: 20pt;
+}
+
+.date {
+    color: #535353;
+    font-family: 'HalloweenNightmare';
+    font-size: 16pt;
+}
+
+.save {
+    float: right;
+}
+
+.poll-form textarea, .poll-form input {
+    width: 100%;
+}
+
+.top-menu, .top-menu:hover, .top-menu:visited {
+    color: #ffffff;
+    float: right;
+    font-size: 26pt;
+    margin-right: 20px;
+}
+
+.top-menu-welcome, .top-menu-welcome:hover, .top-menu-welcome:visited {
+    color: #ffffff;
+    float: right;
+    font-size: 13pt;
+    margin-right: 20px;
+    text-decoration: none;
+}
+
+.poll {
+    margin-bottom: 70px;
+}
+
+.poll h1 a, .poll h1 a:visited {
+    color: #000000;
+}
+
+li a {
+    color: green;
+}

lab_7/django-polls/polls/templates/polls/account_activation_failure.html

+{% extends "polls/base.html" %}
+
+{% block content %}      
+
+    <h1>Account Activation Failed</h1>
+    <p>We were unable to activate your account. The activation link is invalid or has expired.</p>
+    <p>Please <a href="{% url 'polls:register' %}">register</a> again or contact support if you need assistance.</p>
+
+{% endblock %}

lab_7/django-polls/polls/templates/polls/account_activation_success.html

+{% extends "polls/base.html" %}
+
+{% block content %}      
+
+    <h1>Account Activation Successful</h1>
+    <p>Congratulations! Your account has been successfully activated.</p>
+    <p>You may now <a href="{% url 'polls:login' %}">login</a> to start using your account. Enjoy!</p>
+
+{% endblock %}

lab_7/django-polls/polls/templates/polls/base.html

+{% load static %}
+<html>
+    <head>
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+        <title>Polls from the Crypt</title>
+        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
+        <link rel="stylesheet" href="{% static 'polls/style.css' %}">
+    </head>
+    <body>
+        <div class="page-header">
+            {% if user.is_authenticated %}
+                {% if user.is_staff %}
+                    <a href="{% url 'polls:poll_new' %}" class="top-menu">
+                        <span style="color: white">
+                            <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" fill="currentColor" class="bi bi-plus-circle" viewBox="0 0 16 16">
+                                <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
+                                <path d="M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z"/>
+                            </svg>
+                        </span>
+                    </a>
+                {% endif %}
+                <a href="{% url 'polls:logout' %}" class="top-menu">
+                    <span style="color: white">
+                        <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" fill="currentColor" class="bi bi-box-arrow-left" viewBox="0 0 16 16">
+                            <path fill-rule="evenodd" d="M6 12.5a.5.5 0 0 0 .5.5h8a.5.5 0 0 0 .5-.5v-9a.5.5 0 0 0-.5-.5h-8a.5.5 0 0 0-.5.5v2a.5.5 0 0 1-1 0v-2A1.5 1.5 0 0 1 6.5 2h8A1.5 1.5 0 0 1 16 3.5v9a1.5 1.5 0 0 1-1.5 1.5h-8A1.5 1.5 0 0 1 5 12.5v-2a.5.5 0 0 1 1 0v2z"/>
+                            <path fill-rule="evenodd" d="M.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L1.707 7.5H10.5a.5.5 0 0 1 0 1H1.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3z"/>
+                        </svg>
+                    </span>
+                </a>
+                <a href="#" class="top-menu-welcome">
+                    <span style="color: white">Welcome, {{user.username}}</span>
+                </a>
+            {% else %}
+                <div style="vertical-align: middle">
+                    <a href="{% url 'polls:register' %}" class="top-menu">
+                        <span style="color: white">
+                            <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" fill="currentColor" class="bi bi-box-arrow-in-up" viewBox="0 0 16 16">
+                                <path fill-rule="evenodd" d="M3.5 10a.5.5 0 0 1-.5-.5v-8a.5.5 0 0 1 .5-.5h9a.5.5 0 0 1 .5.5v8a.5.5 0 0 1-.5.5h-2a.5.5 0 0 0 0 1h2A1.5 1.5 0 0 0 14 9.5v-8A1.5 1.5 0 0 0 12.5 0h-9A1.5 1.5 0 0 0 2 1.5v8A1.5 1.5 0 0 0 3.5 11h2a.5.5 0 0 0 0-1h-2z"/>
+                                <path fill-rule="evenodd" d="M7.646 4.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1-.708.708L8.5 5.707V14.5a.5.5 0 0 1-1 0V5.707L5.354 7.854a.5.5 0 1 1-.708-.708l3-3z"/>
+                            </svg>
+                        </span>
+                    </a>
+                    <a href="{% url 'polls:login' %}" class="top-menu">
+                        <span style="color: white">
+                            <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" fill="currentColor" class="bi bi-box-arrow-in-right" viewBox="0 0 16 16">
+                                <path fill-rule="evenodd" d="M6 3.5a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 .5.5v9a.5.5 0 0 1-.5.5h-8a.5.5 0 0 1-.5-.5v-2a.5.5 0 0 0-1 0v2A1.5 1.5 0 0 0 6.5 14h8a1.5 1.5 0 0 0 1.5-1.5v-9A1.5 1.5 0 0 0 14.5 2h-8A1.5 1.5 0 0 0 5 3.5v2a.5.5 0 0 0 1 0v-2z"/>
+                                <path fill-rule="evenodd" d="M11.854 8.354a.5.5 0 0 0 0-.708l-3-3a.5.5 0 1 0-.708.708L10.293 7.5H1.5a.5.5 0 0 0 0 1h8.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3z"/>
+                            </svg>
+                        </span>
+                    </a>
+                </div>
+            {% endif %}
+            <h1><a href="/polls">Polls from the Crypt</a></h1>
+            <h4><a href="/polls">{{ slogan }}</a></h4>
+        </div>
+
+        <!-- Messages -->
+        <div class="container">
+            {% if messages %}
+                <div class="alert alert-info alert-dismissible fade show" role="alert">
+                    {% for message in messages %}
+                        {{ message }}
+                    {% endfor %}
+                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                </div>
+            {% endif %}
+        </div>
+
+        <div class="content container mt-4">
+            <div class="row">
+                <div class="col-md-8">
+                    {% block content %}
+                    {% endblock %}
+                </div>
+            </div>
+        </div>
+
+        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
+    </body>
+</html>
\ No newline at end of file

lab_7/django-polls/polls/templates/polls/detail.html

+{% extends 'polls/base.html' %}
+
+{% load crispy_forms_tags %}
+
+{% block content %}
+    <form action="{% url 'polls:vote' question.id %}" method="post">
+        {% csrf_token %}
+        <fieldset>
+            <legend>
+                <h1>{{ question.question_text }}</h1>
+                {% if question.pub_date %}
+                    <div class="date">
+                        {{ question.pub_date }}
+                    </div>
+                {% endif %}
+                {% if user.is_staff %}
+                    <a class="btn btn-default" href="{% url 'polls:poll_edit' pk=question.pk %}">
+                        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-pencil" viewBox="0 0 16 16">
+                            <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z"/>
+                        </svg>
+                    </a>
+                {% endif %}
+            </legend>
+            {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
+            {% for choice in question.choice_set.all %}
+                <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}">
+                <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br>
+            {% endfor %}
+        </fieldset>
+        <input type="submit" class="btn btn-dark" value="Vote">
+    </form>
+{% endblock %}
\ No newline at end of file

lab_7/django-polls/polls/templates/polls/index.html

+{% extends 'polls/base.html' %}
+
+{% block content %}
+    {% if latest_question_list %}
+        {% for question in latest_question_list %}
+            <div class="poll">
+                <h4><a href="{% url 'polls:detail' pk=question.pk %}">{{ question.question_text|linebreaksbr }}</a></h4>
+                <div class="date">
+                    <p>Date: '{{ question.pub_date }}'</p>
+                </div>
+                <hr>
+            </div>
+        {% endfor %}
+    {% else %}
+        <p>No polls are available.</p>
+    {% endif %}
+{% endblock %}
\ No newline at end of file

lab_7/django-polls/polls/templates/polls/login.html

+{% extends "polls/base.html" %}
+{% block content %}
+{% load socialaccount %}
+    {% load crispy_forms_tags %}
+
+    <!--Login-->
+    <div class="py-5">
+        <h1>Login</h1> {{slogan}}
+        <form method="POST">
+            {% csrf_token %}
+            {{ login_form|crispy }}
+            <button class="btn btn-primary" type="submit">Login</button>
+        </form>
+        <p class="text-center">Don't have an account? <a href="{% url 'polls:register' %}">Create an account</a>.</p>
+    </div>
+    <div class="container">
+        <a href="/admin/google/login" id="google-signin-button">
+            <img src="https://developers.google.com/identity/images/g-logo.png"  alt="Google Icon">
+            <span class="text">Sign in with Google</span>
+        </a>
+    </div>
+{% endblock %}
\ No newline at end of file