serp-hashlib

Drop-in replacement for CPython's hashlib object API (sha256/sha1/md5). Native builds use self-contained SHA-256 / SHA-1 / MD5 implementations in the runtime (no crates); under CPython the serp_hashlib_core delegate uses stdlib hashlib. Digests are bit-identical across both worlds.

API

• sha256(data=None) / sha1(data=None) / md5(data=None) — take optional initial bytes, return a hash object.
• Hash objects support .update(data), .hexdigest(), .digest(), .copy().

Divergences: update() re-hashes the accumulated buffer (O(n) memory); no name/digest_size attributes, no new(), sha512/blake2 deferred.

Install

serp add serp-hashlib
pip install serp-hashlib