How to create a server in python socket?

Question

Python

How to create a server in python socket?
I need to create a variable that is visible to both computers with an API.
For example, a user received his API and gave another user his API.
And they take advantage of one change that they can see.

Answer 1

import socket
import sys

# создаемTCP/IP сокет
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Привязываем сокет к порту
server_address = ('localhost', 10000)
print('Старт сервера на {} порт {}'.format(*server_address))
sock.bind(server_address)

# Слушаем входящие подключения
sock.listen(1)

while True:
    # ждем соединения
    print('Ожидание соединения...')
    connection, client_address = sock.accept()
    try:
        print('Подключено к:', client_address)
        # Принимаем данные порциями и ретранслируем их
        while True:
            data = connection.recv(16)
            print(f'Получено: {data.decode()}')
            if data:
                print('Обработка данных...')
                data = data.upper()
                print('Отправка обратно клиенту.')
                connection.sendall(data)
            else:
                print('Нет данных от:', client_address)
                break

    finally:
        # Очищаем соединение
        connection.close()