Patch by Charles-Axel Dein.

Patch by Charles-Axel Dein.

Patch by Donald Stufft.

Issue #22894: TestCase.subTest() would cause the test suite to be stopped when in failfast mode, even in the absence of failures.

Issue #22894: TestCase.subTest() would cause the test suite to be stopped when in failfast mode, even in the absence of failures.

working directory no longer exists.

Thanks to Martin Panter for the bug report.

Issue #22796: HTTP cookie parsing is now stricter, in order to protect against potential injection attacks.

before calling the parent close() method. If the event loop is already closed,
the self-pipe is not unregistered from the selector.

the parent close() method. If the event loop is already closed, the self-pipe
is not unregistered from the selector.

functions:

* add_signal_handler()
* call_at()
* call_later()
* call_soon()
* call_soon_threadsafe()
* run_in_executor()

Fix also the error message of add_signal_handler() (fix the name of the
function).

release mode

- interpreter startup and shutdown code moved to a new
  pylifecycle.c module
- Py_OptimizeFlag moved into the new module with the other
  global flags