Username checker engine

Upstream Maigret project. 180 files total with comprehensive site database.

# Source: https://github.com/mperkins0155/maigret | License: MIT | Copyright 2020-2026 Soxoj
# Provided via justclaw.it.com; keep this notice with the code.
# Standard library imports
import ast
import asyncio
import logging
import os
import random
import re
import ssl
import sys
from typing import Any, Dict, List, Optional, Tuple
from unittest.mock import Mock
from urllib.parse import quote, urlparse

# Third party imports
import aiodns
from alive_progress import alive_bar
from aiohttp import ClientSession, TCPConnector, http_exceptions
from aiohttp.resolver import ThreadedResolver
from aiohttp.client_exceptions import (
    ClientConnectorDNSError,
    ClientConnectorError,
    ClientPayloadError,
    ServerDisconnectedError,
)
from aiohttp_socks import ProxyConnectionError, ProxyError, 

... (truncated -- full source via MCP)