are required.

(regression introduced in issue #14099).

tests, compatible with NumPy's NPY_RELAXED_STRIDES_CHECKING compilation
flag.  Previously the function reported false negatives for corner cases.

implementation in issue #21408 they are redundant.

Patch by Bohuslav Kabrda.

Patch by Bohuslav Kabrda.

At entry, save or swap the exception state even if PyEval_EvalFrameEx() is
called with throwflag=0. At exit, the exception state is now always restored or
swapped, not only if why is WHY_YIELD or WHY_RETURN. Patch co-written with
Antoine Pitrou.

Patch by Nathaniel Smith.

transport was closed. The check broken a Tulip example and this limitation is
arbitrary. Check if _proc is None should be enough.

Enhance also close(): do nothing when called the second time.

the lack of timeout parameter for locks and queues.