GeezerVison

Move signals_pending from _PyRuntime.ceval to
PyInterpreterState.ceval.

Move gil_drop_request member from _PyRuntimeState.ceval to
PyInterpreterState.ceval.

…-19926)

Add --with-experimental-isolated-subinterpreters build option to
configure: better isolate subinterpreters, experimental build mode.

When used, force the usage of the libc malloc() memory allocator,
since pymalloc relies on the unique global interpreter lock (GIL).

`sally` is not a Simpsons character

Automerge-Triggered-By: @gvanrossum

Move recursion_limit member from _PyRuntimeState.ceval to
PyInterpreterState.ceval.

* Py_SetRecursionLimit() now only sets _Py_CheckRecursionLimit
  of ceval.c if the current Python thread is part of the main
  interpreter.
* Inline _Py_MakeEndRecCheck() into _Py_LeaveRecursiveCall().
* Convert _Py_RecursionLimitLowerWaterMark() macro into a static
  inline function.

_PyErr_ChainExceptions() now ensures that the first parameter is an
exception type, as done by _PyErr_SetObject().

* The following function now check PyExceptionInstance_Check() in an
  assertion using a new _PyBaseExceptionObject_cast() helper
  function:

  * PyException_GetTraceback(), PyException_SetTraceback()
  * PyException_GetCause(), PyException_SetCause()
  * PyException_GetContext(), PyException_SetContext()

* PyExceptionClass_Name() now checks PyExceptionClass_Check() with an
  assertion.

* Remove XXX comment and add gi_exc_state variable to _gen_throw().

* Remove comment from test_generators

Automerge-Triggered-By: @corona10

…ythonGH-19932)

This reverts commit 4e01946.

…GH-19933)

When Python is built in the experimental isolated subinterpreters
mode, disable Unicode singletons and Unicode interned strings since
they are shared by all interpreters.

Temporary workaround until these caches are made per-interpreter.

… Windows (pythonGH-19845)

When Python is built with experimental isolated interpreters, disable
tuple, dict and free free lists.

Temporary workaround until these caches are made per-interpreter.

Add frame_alloc() and frame_get_builtins() subfunctions to simplify
_PyFrame_New_NoTrack().

In the experimental isolated subinterpreters build mode,
_PyThreadState_GET() gets the autoTSSkey variable and
_PyThreadState_Swap() sets the autoTSSkey variable.

* Add _PyThreadState_GetTSS()
* _PyRuntimeState_GetThreadState() and _PyThreadState_GET()
  return _PyThreadState_GetTSS()
* PyEval_SaveThread() sets the autoTSSkey variable to current Python
  thread state rather than NULL.
* eval_frame_handle_pending() doesn't check that
  _PyThreadState_Swap() result is NULL.
* _PyThreadState_Swap() gets the current Python thread state with
  _PyThreadState_GetTSS() rather than
  _PyRuntimeGILState_GetThreadState().
* PyGILState_Ensure() no longer checks _PyEval_ThreadsInitialized()
  since it cannot access the current interpreter.

Fix also code to handle init_interp_main() failure.

In the experimental isolated subinterpreters build mode, the GIL is
now per-interpreter.

Move gil from _PyRuntimeState.ceval to PyInterpreterState.ceval.

new_interpreter() always get the config from the main interpreter.

…-19944)

In the experimental isolated subinterpreters build mode,
_xxsubinterpreters.run_string() now releases the GIL.

…Dict nodes (pythonGH-19868)

Co-authored-by: Pablo Galindo <[email protected]>

…xy objects (pythonGH-19946)

bpo-40480:  create different regexps in the presence of multiple `*`
patterns to prevent fnmatch() from taking exponential time.

…thon#19928)" (python#19950)

This reverts commit d60040b.

…ode for the AST (pythonGH-19952)

When Python is built with experimental isolated interpreters, disable
the type method cache.

Temporary workaround until the cache is made per-interpreter.

When Python is built with experimental isolated interpreters, a
garbage collection now does nothing in an isolated interpreter.

Temporary workaround until subinterpreters stop sharing Python
objects.

When Python is built with experimental isolated interpreters, disable
the list free list.

Temporary workaround until this cache is made per-interpreter.

…nGH-19963)

*first* is repeated twice.

…thonGH-19964)

Pass PEP 573 defining_class to os.DirEntry methods. The module state
is now retrieve from defining_class rather than Py_TYPE(self), to
support subclasses (even if DirEntry doesn't support subclasses yet).

* Pass the module rather than defining_class to DirEntry_fetch_stat().
* Only get the module state once in _posix_clear(),
  _posix_traverse() and _posixmodule_exec().

…GH-19768)" (pythonGH-20089)

* Revert "bpo-40613: Remove compiler warning from _xxsubinterpretersmodule (pythonGH-20069)"

This reverts commit fa0a66e.

* Revert "bpo-32604: [_xxsubinterpreters] Propagate exceptions. (pythonGH-19768)"

This reverts commit a1d9e0a.

Cleanup also hashtable.c.
Rename _Py_hashtable_t members:

* Rename entries to nentries
* Rename num_buckets to nbuckets

…pythonGH-20090)

…ythonGH-20083)

This commit fixes the new parser to disallow invalid targets in the
following scenarios:
- Augmented assignments must only accept a single target (Name,
  Attribute or Subscript), but no tuples or lists.
- `except` clauses should only accept a single `Name` as a target.

Co-authored-by: Pablo Galindo <[email protected]>

If _Py_hashtable_set() fails to grow the hash table (rehash), it now
fails rather than ignoring the error.

…H-19983)

Signed-off-by: Filipe Laíns <[email protected]>

Replace ztest with ztext.

…20047)

* Document exec symbol for codeop.compile_command

* Remove extra statements

Co-authored-by: nanjekyejoannah <[email protected]>

…thonGH-20076)

Co-authored-by: Lysandros Nikolaou <[email protected]>

pythonGH-20097)

Signed-off-by: Filipe Laíns <[email protected]>

…GH-20072)

This fixes both the traceback.py module and the C code for formatting syntax errors (in Python/pythonrun.c). They now both consistently do the following:

- Suppress caret if it points left of text
- Allow caret pointing just past end of line
- If caret points past end of line, clip to *just* past end of line

The syntax error formatting code in traceback.py was mostly rewritten; small, subtle changes were applied to the C code in pythonrun.c.

There's still a difference when the text contains embedded newlines. Neither handles these very well, and I don't think the case occurs in practice.

Automerge-Triggered-By: @gvanrossum

Change spelling of a #define in _tkinter.c from HAVE_LIBTOMMAMTH to HAVE_LIBTOMMATH, since this is used to keep track of tclTomMath.h, not tclTomMamth.h. No other file seems to refer to this variable.

…-20095)

distutils.tests now saves/restores warnings filters to leave them
unchanged. Importing tests imports docutils which imports
pkg_resources which adds a warnings filter.

OpenSSL 3.0.0-alpha2 was released today. The FIPS_mode() function has
been deprecated and removed. It no longer makes sense with the new
provider and context system in OpenSSL 3.0.0.

EVP_default_properties_is_fips_enabled() is good enough for our needs in
unit tests. It's an internal API, too.

Signed-off-by: Christian Heimes <[email protected]>

* 1.0.2u (EOL)
* 1.1.0l (EOL)
* 1.1.1g
* 3.0.0-alpha2 (disabled for now)

Build the FIPS provider and create a FIPS configuration file for OpenSSL
3.0.0.

Signed-off-by: Christian Heimes <[email protected]>

Automerge-Triggered-By: @tiran

…/python/cpython into revert-19108-remove-cElementTree

…/python/cpython into revert-19108-remove-cElementTree