89. Making a CPython Patch
89. Making a CPython Patch A CPython patch is a coordinated change to the interpreter, runtime, standard library, tests, documentation, and development metadata. Even a small fix may affect object lifetime, bytecode behavior, platform compatibility, import state, or public APIs. Making a good CPython patch requires more than changing code. The patch must preserve runtime invariants, include regression tests, follow repository conventions, build correctly across platforms, and explain user-visible behavior...