Move _PyImportZip_Init() to the internal C API and add an 'interp'
parameter.

https://bugs.python.org/issue34682

Remove the PyEval_ReInitThreads() function from the Python C API.
It should not be called explicitly: use PyOS_AfterFork_Child()
instead.

Rename PyEval_ReInitThreads() to _PyEval_ReInitThreads() and add a
'runtime' parameter.

Remove cp65001 from the codecs table, list it as an alias of utf_8
and add a versionchanged markup.

Co-Authored-By: Filip Gruszczyński <gruszczy@gmail.com>
Co-Authored-By: Michele Orrù <maker@tumbolandia.net>

`time.clock()` was deprecated in 3.3, and marked for removal removal in
3.8; this thus remove it from the time module.

The combined Python and C coverage test runs now exceed Travis's
50-minute time limit. Splitting them into separate runs gives more
leeway.

Also, adding branch coverage to Python testing and ensure that
coverage is reported even if tests fail. (The primary builds are
for tracking test failures.)

In the parser, when using the type_comments=True option, recognize
a TYPE_IGNORE as anything containing `# type: ignore` followed by
a non-alphanumeric character. This is to allow ignores such as
`# type: ignore[E1000]`.

https://bugs.python.org/issue36884

Android still links to libpython.

Add "struct _ceval_runtime_state *ceval = &_PyRuntime.ceval;" local
variables to function to better highlight the dependency on the
global variable _PyRuntime and to point directly to _PyRuntime.ceval
field rather than on the larger _PyRuntime.

Changes:

* Add _PyRuntimeState_GetThreadState(runtime) macro.
* Add _PyEval_AddPendingCall(ceval, ...) and
  _PyThreadState_Swap(gilstate, ...) functions.
* _PyThreadState_GET() macro now calls
  _PyRuntimeState_GetThreadState() using &_PyRuntime.
* Add 'ceval' parameter to COMPUTE_EVAL_BREAKER(),
  SIGNAL_PENDING_SIGNALS(), _PyEval_SignalAsyncExc(),
  _PyEval_SignalReceived() and _PyEval_FiniThreads() macros and
  functions.
* Add 'tstate' parameter to call_function(), do_call_core() and
  do_raise().
* Add 'runtime' parameter to _Py_CURRENTLY_FINALIZING(),
  _Py_FinishPendingCalls() and _PyThreadState_DeleteExcept()
  macros and functions.
* Declare 'runtime', 'tstate', 'ceval' and 'eval_breaker' variables
  as constant.

The multiprocessing.resource_tracker replaces the multiprocessing.semaphore_tracker module. Other than semaphores, resource_tracker also tracks shared_memory segments. Patch by Pierre Glaser.

Fix a bug crashing SharedMemoryManager instances in interactive sessions after
a Ctrl-C (KeyboardInterrupt) was sent.

Add new trashcan macros to deal with a double deallocation that could occur when the `tp_dealloc` of a subclass calls the `tp_dealloc` of a base class and that base class uses the trashcan mechanism.

Patch by Jeroen Demeyer.

Patch by Kojo Idrissa.

Extended attributes can only be set on user-writeable files, but shutil previously
first chmod()ed the destination file to the source's permissions and then tried to
copy xattrs. This will cause failures if attempting to copy read-only files with
xattrs, as occurs with Git clones on Lustre FS.

Fix an issue where os.posix_spawn() would incorrectly raise a TypeError
when file_actions is None.

csv.DictWriter.writeheader() now returns the return value of the
underlying csv.Writer.writerow() method.

Patch contributed by Ashish Nitin Patil.

https://bugs.python.org/issue36601