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gh-130940: Modify default behavior of PyConfig.use_system_logger to enable on iOS (#131172)

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Modify default behavior of use_system_log to enable on iOS.
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Russell Keith-Magee 2025-03-13 14:28:49 +08:00 • committed by GitHub
parent f7ac656c8e
commit dd6d24e9d2
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4 changed files with 22 additions and 6 deletions
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9
Doc/c-api/init_config.rst
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@ -505,6 +505,10 @@ Configuration Options
- :c:member:`use_hash_seed <PyConfig.use_hash_seed>`
- ``bool``
- Read-only
* - ``"use_system_logger"``
- :c:member:`use_system_logger <PyConfig.use_system_logger>`
- ``bool``
- Read-only
* - ``"user_site_directory"``
- :c:member:`user_site_directory <PyConfig.user_site_directory>`
- ``bool``
@ -1927,9 +1931,10 @@ PyConfig
Only available on macOS 10.12 and later, and on iOS.
Default: ``0`` (don't use system log).
Default: ``0`` (don't use the system log) on macOS; ``1`` on iOS (use the
system log).
.. versionadded:: 3.13.2
.. versionadded:: 3.14
.. c:member:: int user_site_directory

2
Doc/using/ios.rst
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@ -297,7 +297,7 @@ To add Python to an iOS Xcode project:
* Writing bytecode (:c:member:`PyConfig.write_bytecode`) is *disabled*;
* Signal handlers (:c:member:`PyConfig.install_signal_handlers`) are *enabled*;
* System logging (:c:member:`PyConfig.use_system_logger`) is *enabled*
(optional, but strongly recommended);
(optional, but strongly recommended; this is enabled by default);
* ``PYTHONHOME`` for the interpreter is configured to point at the
``python`` subfolder of your app's bundle; and
* The ``PYTHONPATH`` for the interpreter includes:

2
Misc/NEWS.d/next/Library/2025-03-13-07-06-22.gh-issue-130940.i5cUI5.rst Normal file
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@ -0,0 +1,2 @@
The behavior of ``PyConfig.use_system_logger`` was modified to be enabled by
default on iOS. It remains disabled by default on macOS.

15
Python/initconfig.c
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@ -25,6 +25,15 @@
# endif
#endif
#ifdef __APPLE__
/* Enable system log by default on non-macOS Apple platforms */
# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
#define USE_SYSTEM_LOGGER_DEFAULT 1;
# else
#define USE_SYSTEM_LOGGER_DEFAULT 0;
# endif
#endif
#include "config_common.h"
/* --- PyConfig setters ------------------------------------------- */
@ -1017,7 +1026,7 @@ _PyConfig_InitCompatConfig(PyConfig *config)
config->code_debug_ranges = 1;
config->cpu_count = -1;
#ifdef __APPLE__
config->use_system_logger = 0;
config->use_system_logger = USE_SYSTEM_LOGGER_DEFAULT;
#endif
#ifdef Py_GIL_DISABLED
config->enable_gil = _PyConfig_GIL_DEFAULT;
@ -1049,7 +1058,7 @@ config_init_defaults(PyConfig *config)
config->legacy_windows_stdio = 0;
#endif
#ifdef __APPLE__
config->use_system_logger = 0;
config->use_system_logger = USE_SYSTEM_LOGGER_DEFAULT;
#endif
}
@ -1086,7 +1095,7 @@ PyConfig_InitIsolatedConfig(PyConfig *config)
config->legacy_windows_stdio = 0;
#endif
#ifdef __APPLE__
config->use_system_logger = 0;
config->use_system_logger = USE_SYSTEM_LOGGER_DEFAULT;
#endif
}