Victor Stinner [Wed, 13 Oct 2021 21:27:50 +0000 (23:27 +0200)]
bpo-45440: Require math.h isinf() to build (GH-28894)
Building Python now requires a C99 <math.h> header file providing
isinf(), isnan() and isfinite() functions.
Remove the Py_FORCE_DOUBLE() macro. It was used by the
Py_IS_INFINITY() macro.
Changes:
* Remove Py_IS_NAN(), Py_IS_INFINITY() and Py_IS_FINITE()
in PC/pyconfig.h.
* Remove the _Py_force_double() function.
* configure no longer checks if math.h defines isinf(), isnan() and
isfinite().
rtobar [Wed, 13 Oct 2021 16:38:36 +0000 (00:38 +0800)]
bpo-45386: Handle strftime's ValueError graciously in xmlrpc.client (GH-28765)
At import time, the xmlrpc.client module uses different date formats to
test strftime so it can format years with 4 digits consistently.
Depending on the underlying C library and its strftime implementation
some of these calls can result in ValueErrors, blocking the
xmlrpc.client module from being imported.
This commit changes the behavior of this bit of code to react to
ValueError exceptions, treating the format that caused them as an
non-viable option.
Victor Stinner [Wed, 13 Oct 2021 12:09:13 +0000 (14:09 +0200)]
pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)
Redefining the PyThreadState_GET() macro in pycore_pystate.h is
useless since it doesn't affect files not including it. Either use
_PyThreadState_GET() directly, or don't use pycore_pystate.h internal
C API. For example, the _testcapi extension don't use the internal C
API, but use the public PyThreadState_Get() function instead.
Replace PyThreadState_Get() with _PyThreadState_GET(). The
_PyThreadState_GET() macro is more efficient than PyThreadState_Get()
and PyThreadState_GET() function calls which call fail with a fatal
Python error.
posixmodule.c and _ctypes extension now include <windows.h> before
pycore header files (like pycore_call.h).
_PyTraceback_Add() now uses _PyErr_Fetch()/_PyErr_Restore() instead
of PyErr_Fetch()/PyErr_Restore().
The _decimal and _xxsubinterpreters extensions are now built with the
Py_BUILD_CORE_MODULE macro defined to get access to the internal C
API.
support.print_warning() now stores the original value of
sys.__stderr__ and uses it to log warnings. libregrtest uses the same
stream to log unraisable exceptions and uncaught threading
exceptions.
Partially revert commit dbe213de7ef28712bbfdb9d94a33abb9c33ef0c2:
libregrtest no longer replaces sys.__stdout__, sys.__stderr__, and
stdout and stderr file descriptors.
test_embed.StdPrinterTests now always use the file descriptor 1 for
stdout, rather than using sys.__stdout__.fileno().
PyFile_NewStdPrinter() does crash if the argument is not 1 or 2.
Fix also a few pyflakes warnings: remove unused import and variables.
Victor Stinner [Tue, 12 Oct 2021 06:38:19 +0000 (08:38 +0200)]
bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)
* Move _PyObject_CallNoArgs() to pycore_call.h (internal C API).
* _ssl, _sqlite and _testcapi extensions now call the public
PyObject_CallNoArgs() function, rather than _PyObject_CallNoArgs().
* _lsprof extension is now built with Py_BUILD_CORE_MODULE macro
defined to get access to internal _PyObject_CallNoArgs().
Victor Stinner [Mon, 11 Oct 2021 22:42:23 +0000 (00:42 +0200)]
bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)
Fix typo in the private _PyObject_CallNoArg() function name: rename
it to _PyObject_CallNoArgs() to be consistent with the public
function PyObject_CallNoArgs().
Victor Stinner [Mon, 11 Oct 2021 22:12:00 +0000 (00:12 +0200)]
bpo-45412: Move copysign() define to pycore_pymath.h (GH-28889)
Move definitions of copysign(), round(), hypot(), fmod(), etc. from
pymath.h to pycore_pymath.h. These functions are not exported by
libpython and so must not be part of the C API.
* Move limits.h include and UCHAR_MAX checks to pyport.h.
* Move sanitizers macros to pyport.h.
* Remove comment about <assert.h>: C extensions are built with NDEBUG
automatically by Python.
Rename Py_ADJUST_ERANGE1() and Py_ADJUST_ERANGE2() to
_Py_ADJUST_ERANGE1() and _Py_ADJUST_ERANGE2(), and convert these
macros to static inline functions.
bpo-45353: Remind sys.modules users to copy when iterating. (GH-28842)
This is true of all dictionaries in Python, but this one tends to
catch people off guard as they don't realize when sys.modules might
change out from underneath them as a hidden side effect of their
code. Copying it first avoids the RuntimeError. An example when
this happens in single threaded code are codecs being loaded which
are an implicit time of use import that most need not think about.
Victor Stinner [Fri, 8 Oct 2021 15:14:37 +0000 (17:14 +0200)]
bpo-45410: libregrtest -jN writes stderr into stdout (GH-28819)
When libregrtest spawns a worker process, stderr is now written into
stdout to keep messages order. Use a single pipe for stdout and
stderr, rather than two pipes. Previously, messages were out of order
which made analysis of buildbot logs harder
Victor Stinner [Thu, 7 Oct 2021 11:47:23 +0000 (13:47 +0200)]
bpo-45400: Fix suggestion test of test_exceptions (GH-28783)
Fix test_name_error_suggestions_do_not_trigger_for_too_many_locals()
of test_exceptions if a directory name contains "a1" (like
"Python-3.11.0a1"): use a stricter regular expression.
Ammar Askar [Wed, 6 Oct 2021 23:22:09 +0000 (19:22 -0400)]
bpo-29505: Add fuzzer for ast.literal_eval (GH-28777)
This supercedes https://github.com/python/cpython/pull/3437 and fuzzes the method we recommend for unsafe inputs, `ast.literal_eval`. This should exercise the tokenizer and parser.
Jakub Stasiak [Wed, 6 Oct 2021 18:23:02 +0000 (20:23 +0200)]
[doc] Mention __slots__ behavior in weakref.rst (GH-21061)
It took me longer than I expected to figure out why a random class
I dealt with didn't support weak references. I believe this addition
will make the __slots__/weakref interaction more discoverable to people
having troubles with this. (Before this patch __slots__ was not
mentioned in weakref documentation even once).