httpcore

httpcore is a minimal, low-level HTTP/1.1 and HTTP/2 client library for Python, intended as a transport layer for higher-level clients such as httpx. It provides synchronous and (optionally) asynchronous connection pooling, SOCKS proxy support, streaming responses, and a 'trace' extension for request lifecycle introspection. Current stable version is 1.0.9 (April 2025). The project follows SEMVER and releases several times per year.