The original title is 10 words: "Building a Rotating Proxy Pool in Python That Survives Failures"

Short summary

A practical guide to building a Python proxy pool that rotates IPs on every attempt and retries failed requests on a fresh proxy with exponential backoff. The ProxyPool class treats 429 and 5xx as retryable while letting real client errors pass through. It also covers sticky sessions for multi-step flows like logins that need IP consistency, and gateway providers that auto-rotate IPs per request.

• •ProxyPool class rotates IPs on every attempt with exponential backoff on failures
• •429/5xx treated as retryable; real client errors like 404 pass through normally
• •Sticky sessions pin a session ID in the proxy username for multi-step flows needing IP consistency

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