Barney Gale [Sat, 1 Jul 2023 11:24:34 +0000 (12:24 +0100)]
GH-89812: Make symlink support configurable in pathlib tests. (GH-106060)
Adjust the pathlib tests to add a new `PathTest.can_symlink` class
attribute, which allows us to enable or disable symlink support in tests.
A (near-)future commit will add an `AbstractPath` class; its tests will
hard-code the value to `True` or `False` depending on a stub subclass's
capabilities.
Terry Jan Reedy [Sat, 1 Jul 2023 02:34:31 +0000 (22:34 -0400)]
gh-106232: Make timeit doc command lines compatible with Windows. (#106296)
Command Prompt (CMD Shell) and older versions of PowerShell
require double quotes and single quotes inside the string.
This form also works on linux and macOS.
Barney Gale [Fri, 30 Jun 2023 23:46:44 +0000 (00:46 +0100)]
GH-89812: Simplify creation of symlinks in pathlib tests. (GH-106061)
Remove `PathTest.dirlink()` function. Symlinks in `PathTest.setUp()` are
created using `os.symlink()` directly; symlinks in test functions use
`Path.symlink_to()` in order to make the tests applicable to a
(near-)future `AbstractPath` class.
Charlie Zhao [Thu, 29 Jun 2023 10:27:20 +0000 (18:27 +0800)]
gh-106078: Convert `_decimal` types to heap types (#106079)
- Establish global state struct
- Convert static types to heap types and add them to global state:
* PyDecContextManager_Type
* PyDecContext_Type
* PyDecSignalDictMixin_Type
* PyDec_Type
- Add to global state:
* PyDecSignalDict_Type
* DecimalTuple
Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend@python.org>
Serhiy Storchaka [Thu, 29 Jun 2023 09:22:19 +0000 (12:22 +0300)]
gh-101006: Improve error handling when read marshal data (GH-101007)
* EOFError no longer overrides other errors such as MemoryError or OSError at
the start of the object.
* Raise more relevant error when the NULL object occurs as a code object
component.
* Minimize an overhead of calling PyErr_Occurred().
Guido van Rossum [Wed, 28 Jun 2023 18:28:07 +0000 (11:28 -0700)]
gh-104584: Emit macro expansions to opcode_metadata.h (#106163)
This produces longer traces (superblocks?).
Also improved debug output (uop names are now printed instead of numeric opcodes). This would be simpler if the numeric opcode values were generated by generate_cases.py, but that's another project.
Refactored some code in generate_cases.py so the essential algorithm for cache effects is only run once. (Deciding which effects are used and what the total cache size is, regardless of what's used.)
Victor Stinner [Wed, 28 Jun 2023 02:41:21 +0000 (04:41 +0200)]
GH-104584: Fix test_capi.test_counter_optimizer() when run twice (#106171)
test_counter_optimizer() and test_long_loop() of test_capi now create
a new function at each call. Otherwise, the optimizer counters are
not the expected values when the test is run more than once.
Victor Stinner [Wed, 28 Jun 2023 02:26:52 +0000 (04:26 +0200)]
gh-101634: regrtest reports decoding error as failed test (#106169)
When running the Python test suite with -jN option, if a worker stdout
cannot be decoded from the locale encoding report a failed testn so the
exitcode is non-zero.
Victor Stinner [Wed, 28 Jun 2023 01:45:57 +0000 (03:45 +0200)]
gh-106168: PyTuple_SET_ITEM() now checks the index (#106164)
PyTuple_SET_ITEM() and PyList_SET_ITEM() now check the index argument
with an assertion if Python is built in debug mode or is built with
assertions.
* list_extend() and _PyList_AppendTakeRef() now set the list size
before calling PyList_SET_ITEM().
* PyStructSequence_GetItem() and PyStructSequence_SetItem() now check
the index argument: must be lesser than REAL_SIZE(op).
* PyStructSequence_GET_ITEM() and PyStructSequence_SET_ITEM() are now
aliases to PyStructSequence_GetItem() and
PyStructSequence_SetItem().
T. Wouters [Wed, 28 Jun 2023 00:55:11 +0000 (02:55 +0200)]
GH-106160: Fix test_gzip failing under WASI, which does not have zlib. (#106167)
Fix test_gzip's failure under WASI, which does not have zlib, by using
test.support.import_helper.import_module to import zlib. (gzip
unconditionally imports zlib, so this does not cause any new skips.)
Guido van Rossum [Tue, 27 Jun 2023 21:17:41 +0000 (14:17 -0700)]
gh-104584: Change DEOPT_IF in uops executor (#106146)
This effectively reverts bb578a0, restoring the original DEOPT_IF() macro in ceval_macros.h, and redefining it in the Tier 2 interpreter. We can get rid of the PREDICTED() macros there as well!
Guido van Rossum [Tue, 27 Jun 2023 02:02:57 +0000 (19:02 -0700)]
gh-104584: Baby steps towards generating and executing traces (#105924)
Added a new, experimental, tracing optimizer and interpreter (a.k.a. "tier 2"). This currently pessimizes, so don't use yet -- this is infrastructure so we can experiment with optimizing passes. To enable it, pass ``-Xuops`` or set ``PYTHONUOPS=1``. To get debug output, set ``PYTHONUOPSDEBUG=N`` where ``N`` is a debug level (0-4, where 0 is no debug output and 4 is excessively verbose).
All of this code is likely to change dramatically before the 3.13 feature freeze. But this is a first step.
Barney Gale [Mon, 26 Jun 2023 16:58:17 +0000 (17:58 +0100)]
GH-105793: Add follow_symlinks argument to `pathlib.Path.is_dir()` and `is_file()` (GH-105794)
Brings `pathlib.Path.is_dir()` and `in line with `os.DirEntry.is_dir()`, which
will be important for implementing generic path walking and globbing.
Likewise `is_file()`.
Move _PyObject_RealIsInstance() and _PyObject_RealIsSubclass() to the
internal C API (pycore_abstract.h) and no longer export their symbols
(in libpython).
Make _Py_add_one_to_index_F() and _Py_add_one_to_index_C() functions
static: no longer export them.
Victor Stinner [Mon, 26 Jun 2023 06:30:59 +0000 (08:30 +0200)]
gh-106084: Remove _PySequence_BytesToCharpArray() function (#106088)
Remove private _PySequence_BytesToCharpArray() and
_Py_FreeCharPArray() functions from the public C API: move these
functions from Objects/abstract.c to Modules/_posixsubprocess.c.
Gregory P. Smith [Sat, 24 Jun 2023 23:29:26 +0000 (16:29 -0700)]
gh-106033: [docs] Improve C API GetItem & HasAttr notes. (#106047)
Use a note:: tag so that these dict and object API deficiencies show up clearly.
A caution:: tag was considered, but our current python docs rendering doesn't do much with that (no box or color change). warning:: seemed too extreme. note looks good.
Serhiy Storchaka [Fri, 23 Jun 2023 17:10:32 +0000 (20:10 +0300)]
gh-106033: Get rid of new occurrences of PyDict_GetItem and PyObject_HasAttr (GH-106034)
These functions are broken by design because they discard any exceptions raised
inside, including MemoryError and KeyboardInterrupt. They should not be
used in new code.
Serhiy Storchaka [Fri, 23 Jun 2023 16:53:27 +0000 (19:53 +0300)]
gh-106030: Miscellaneous fixes in Python/suggestions.c (GH-106031)
* PyDict_GetItem() and PyObject_HasAttr() suppress arbitrary errors and
should not be used.
* PyUnicode_CompareWithASCIIString() only works if the second argument
is ASCII string.
* Refleak in get_suggestions_for_name_error.
* Use of borrowed pointer after possible freeing (self).
* Add some missing error checks.
* Replace PyWeakref_GET_OBJECT() with _PyWeakref_GET_REF().
* _sqlite/blob.c now holds a strong reference to the blob object
while calling close_blob().
* _xidregistry_find_type() now holds a strong reference to registered
while using it.
Victor Stinner [Thu, 22 Jun 2023 19:56:44 +0000 (21:56 +0200)]
gh-105927: Add _PyWeakref_IS_DEAD() function (#105992)
* Add _PyWeakref_IS_DEAD() internal function.
* Modify is_dead_weakref() of Modules/_weakref.c and
_pysqlite_drop_unused_cursor_references() to replace
PyWeakref_GET_OBJECT() with _PyWeakref_IS_DEAD().
* Replace "int i" with "Py_ssize_t i" to iterate on cursors
in _pysqlite_drop_unused_cursor_references().