Topic python
pip Behind a Proxy: Fix "Cannot Connect to Proxy", 407, and Certificate Errors
How pip finds its proxy, the --proxy flag and pip.conf keys, and the fix for each error: cannot connect to proxy, 407 in the tunnel, and certificate verify failed.
How to Use Proxies With aiohttp (async Python)
How to use proxies with aiohttp: the proxy argument, BasicAuth, trust_env, SOCKS5 through aiohttp-socks, rotating a pool across concurrent tasks, timeouts and retries.
How to Use Proxies With LangChain
How to use proxies with LangChain: route WebBaseLoader, document loaders and scraping tools through a proxy, and why you proxy the data side, not the model call.
requests vs httpx vs aiohttp: Proxies Compared
How the three Python HTTP clients handle proxies: the config each one uses, SOCKS support, sync versus async, connection reuse, and which to pick for a scraper.
How to Use Proxies With HTTPX (Sync and Async)
How to use proxies in Python HTTPX after the 0.28 rename: the proxy argument, mounts for per-scheme and per-host routing, async clients, SOCKS5, auth, and verifying your exit IP.
How to Use Proxies With Python Requests
How to use proxies with Python requests: the proxies dict, auth, Sessions, SOCKS5, rotating a pool, timeouts and retries, plus verifying your real exit IP.
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