PyErr_Format() uses "%zd" for Py_ssize_t, not PY_FORMAT_SIZE_T

uses "%zd" for Py_ssize_t, not PY_FORMAT_SIZE_T

Reported by Draic Kin on docs@.

Patch by Milan Oberkirch.

When ``None`` was passed as a ``REG_BINARY`` value to SetValueEx,
PyMem_DEL was called on an uninitialized buffer.  Patch by John Ehresman.

(Also an incidental typo fix in a comment in test_winreg)

Python is built without threads.

* _UnixSubprocessTransport: fix file mode of stdin. Open stdin in write mode,
  not in read mode
* Examples: close the event loop at exit
* More reliable CoroWrapper.__del__. If the constructor is interrupted by
  KeyboardInterrupt or the coroutine objet is destroyed lately, some the
  _source_traceback attribute doesn't exist anymore.
* repr(Task): include also the future the task is waiting for

* _UnixSubprocessTransport: fix file mode of stdin. Open stdin in write mode,
  not in read mode
* Examples: close the event loop at exit
* More reliable CoroWrapper.__del__. If the constructor is interrupted by
  KeyboardInterrupt or the coroutine objet is destroyed lately, some the
  _source_traceback attribute doesn't exist anymore.
* repr(Task): include also the future the task is waiting for

anymore. Before, it ignored I/O errors if at least the first C call read()
succeed.

it ignored I/O errors if at least the first C call read() succeed.

Patch by Pablo Torres Navarrete and SilentGhost.

parameters

parsing parameters

parameters.  ssl.RAND_add() now supports strings longer than 2 GB.

ssl.RAND_add() now supports strings longer than 2 GB.

to format C size_t, because %zi/%u is not supported on all platforms.

size_t, because %zi/%u is not supported on all platforms.