Pure Python `SimpleQueue.get()` raises `ValueError` when block is false and timeout is given

The docs for SimpleQueue.get() say that timeout is ignored when block is false. The C version does that, but the pure Python version passes timeout to threading.Semaphore.acquire() and fails:

>>> from queue import _PySimpleQueue
>>> _PySimpleQueue().get(block=False, timeout=1)
Traceback (most recent call last):
  ...
ValueError: can't specify timeout for non-blocking acquire

The C version raises Empty here.

A PR is on the way.

Linked PRs

• gh-156477
• gh-156487
• gh-156488
• gh-156489

Start with the pure Python _PySimpleQueue.get() implementation and compare its handling of block=False and timeout with the C version and the SimpleQueue documentation. Done means a non-blocking get with a supplied timeout follows the documented behavior and raises Empty rather than ValueError; check the existing behavior shown in the issue.