import json

data = '{"name": "Alice", "age": 25}'
parsed = json.loads(data)
print(parsed["name"])  # Alice

from bs4 import BeautifulSoup

html = "<h1>Hello <b>Python</b></h1>"
soup = BeautifulSoup(html, "html.parser")
print(soup.h1.text)  # Hello Python

import argparse

parser = argparse.ArgumentParser()
parser.add_argument("--name")
args = parser.parse_args()
print(f"Hello, {args.name}")

import csv

with open("data.csv") as f:
    reader = csv.DictReader(f)
    for row in reader:
        print(row["username"], row["score"])

import re

text = "Email: [email protected]"
match = re.search(r"\w+@\w+\.\w+", text)
print(match.group())  # [email protected]

import ipaddress

# Создаём сеть
net = ipaddress.ip_network("192.168.1.0/24")

# Проверяем, входит ли IP в сеть
print(ipaddress.ip_address("192.168.1.42") in net)  # True
print(ipaddress.ip_address("10.0.0.5") in net)      # False

# Перебираем все адреса подсети
for ip in net.hosts():
    print(ip)
    break  # выведет первый адрес

# Работаем с IPv6 так же просто
ipv6 = ipaddress.ip_network("2001:db8::/32")
print(ipaddress.ip_address("2001:db8::1") in ipv6)  # True