os urandom does not document CCRandomGenerateBytes

[RappelBerryPi]

Documentation

The documentation for os.urandom clearly states that for Linux systems getrandom() is used when available (and then depending on python release and Linux version the behavior changes).

The documentation also clearly states that for Windows os.urandom uses BCryptGenRandom (which was previously CryptGenRandom before release 3.11).

The documentation then states that on a "Unix-like system" that reads to /dev/urandom are done.

However macOS is not mentioned (which could technically be covered by the "Unix-like system" and is often misinterpreted that way).

The /mimalloc/prim/unix/prim.c file (around lines 730-760) define macOS functionality using CCRandomGenerateBytes and then falling back to arc4random_buf.

The above functionality should be documented.

[ronaldoussoren]

The documentation is not up to date, but not in the way you mention. The implementation for os.urandom in the end calls pyurandom in Python/bootstrap.c, and that calls getentropy(3) on macOS 10.12 or later and reads from /dev/urandom on older versions of macOS.

The fact that getentropy is used is only mentioned in a version changed notice that only mentions OpenBSD.

[RappelBerryPi]

Thank you for the correction of my misunderstanding.

Also thank you for updating the doc.