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* gh-119574: Add some missing environment variables to '--help-env'. (GH-120006)devdanzin2024-06-181-0/+17
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* gh-118518: Rename `PYTHONPERFJITSUPPORT` and `-X perfjit` with underscores ↵Hugo van Kemenade2024-05-071-2/+2
| | | | (#118693)
* gh-118518: Correct type of perf_profiling in config (#118646)Pablo Galindo Salgado2024-05-061-1/+1
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* gh-118518: Allow perf to work without frame pointers (#112254)Pablo Galindo Salgado2024-05-051-0/+14
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* gh-76785: Add PyInterpreterConfig Helpers (gh-117170)Eric Snow2024-04-021-22/+3
| | | These helpers make it easier to customize and inspect the config used to initialize interpreters. This is especially valuable in our tests. I found inspiration from the PyConfig API for the PyInterpreterConfig dict conversion stuff. As part of this PR I've also added a bunch of tests.
* gh-117041: Add "-X gil" in the Python CLI help (GH-117042)Serhiy Storchaka2024-03-191-0/+5
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* gh-90300: Improve the Python CLI help output (GH-115853)Serhiy Storchaka2024-03-191-78/+40
| | | | | | | | | * document equivalent command-line options for all environment variables * document equivalent environment variables for all command-line options * reduce the size of variable and option descriptions to minimum * remove the ending period in single-sentence descriptions Co-authored-by: Éric <merwok@netwok.org> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
* gh-90300: Fix undocumented envvars in the Python CLI help (GH-116765)Serhiy Storchaka2024-03-141-0/+3
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* gh-90300: Document equivalent -X options for envvars in the Python CLI help ↵Serhiy Storchaka2024-03-131-29/+31
| | | | (GH-116756)
* gh-90300: Sort the -X options and some envvars in the Python CLI help ↵Serhiy Storchaka2024-03-131-40/+43
| | | | (GH-116739)
* gh-90300: Fix cmdline.rst (GH-116721)Serhiy Storchaka2024-03-131-2/+2
| | | | * Fix the description of the "-b" option. * Add references to environment variables for "-s" and "-X dev" options.
* gh-116167: Allow disabling the GIL with `PYTHON_GIL=0` or `-X gil=0` (#116338)Brett Simmers2024-03-111-0/+45
| | | | | | | | | In free-threaded builds, running with `PYTHON_GIL=0` will now disable the GIL. Follow-up issues track work to re-enable the GIL when loading an incompatible extension, and to disable the GIL by default. In order to support re-enabling the GIL at runtime, all GIL-related data structures are initialized as usual, and disabling the GIL simply sets a flag that causes `take_gil()` and `drop_gil()` to return early.
* gh-107954: Add PyConfig_MEMBER_BOOL type to PyConfigSpec (#116359)Victor Stinner2024-03-061-40/+50
| | | | | | _PyConfig_AsDict() now returns bool objects for options using the new PyConfig_MEMBER_BOOL type. Update tests for these changes.
* gh-90300: Reformat the Python CLI help output (GH-93415)Serhiy Storchaka2024-02-231-108/+106
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* gh-73965: Move PYTHON_HISTORY into the correct usage section (#113798)Hugo van Kemenade2024-01-081-1/+1
| | | | Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-73965: New environment variable PYTHON_HISTORY (#13208)Zackery Spytz2024-01-071-0/+1
| | | | | | | | It can be used to set the location of a .python_history file --------- Co-authored-by: Levi Sabah <0xl3vi@gmail.com> Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
* gh-112730: Use color to highlight error locations (gh-112732)Pablo Galindo Salgado2023-12-061-0/+2
| | | | Signed-off-by: Pablo Galindo <pablogsal@gmail.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* gh-111374: Add a new PYTHON_FROZEN_MODULES env var, equivalent of `-X ↵Yilei Yang2023-11-011-1/+17
| | | | | | | frozen_modules`. (#111411) Adds a new PYTHON_FROZEN_MODULES env var to correspond with -X frozen_modules. Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
* gh-110722: Add PYTHON_PRESITE to import a module before site.py is run (#110769)Łukasz Langa2023-10-141-0/+54
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* gh-109595: Add -Xcpu_count=<n> cmdline for container users (#109667)Donghee Na2023-10-101-1/+57
| | | | | | --------- Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
* gh-109853: Fix sys.path[0] For Subinterpreters (gh-109994)Eric Snow2023-10-021-0/+3
| | | This change makes sure sys.path[0] is set properly for subinterpreters. Before, it wasn't getting set at all. This PR does not address the broader concerns from gh-109853.
* gh-107954: Refactor initconfig.c: add CONFIG_SPEC (#110146)Victor Stinner2023-09-301-320/+257
| | | Add a specification of the PyConfig structure to factorize the code.
* gh-108753: Enhance pystats (#108754)Victor Stinner2023-09-061-2/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Statistics gathering is now off by default. Use the "-X pystats" command line option or set the new PYTHONSTATS environment variable to 1 to turn statistics gathering on at Python startup. Statistics are no longer dumped at exit if statistics gathering was off or statistics have been cleared. Changes: * Add PYTHONSTATS environment variable. * sys._stats_dump() now returns False if statistics are not dumped because they are all equal to zero. * Add PyConfig._pystats member. * Add tests on sys functions and on setting PyConfig._pystats to 1. * Add Include/cpython/pystats.h and Include/internal/pycore_pystats.h header files. * Rename '_py_stats' variable to '_Py_stats'. * Exclude Include/cpython/pystats.h from the Py_LIMITED_API. * Move pystats.h include from object.h to Python.h. * Add _Py_StatsOn() and _Py_StatsOff() functions. Remove '_py_stats_struct' variable from the API: make it static in specialize.c. * Document API in Include/pystats.h and Include/cpython/pystats.h. * Complete pystats documentation in Doc/using/configure.rst. * Don't write "all zeros" stats: if _stats_off() and _stats_clear() or _stats_dump() were called. * _PyEval_Fini() now always call _Py_PrintSpecializationStats() which does nothing if stats are all zeros. Co-authored-by: Michael Droettboom <mdboom@gmail.com>
* gh-108634: PyInterpreterState_New() no longer calls Py_FatalError() (#108748)Victor Stinner2023-09-011-7/+20
| | | | | | | | | | | | pycore_create_interpreter() now returns a status, rather than calling Py_FatalError(). * PyInterpreterState_New() now calls Py_ExitStatusException() instead of calling Py_FatalError() directly. * Replace Py_FatalError() with PyStatus in init_interpreter() and _PyObject_InitState(). * _PyErr_SetFromPyStatus() now raises RuntimeError, instead of ValueError. It can now call PyErr_NoMemory(), raise MemoryError, if it detects _PyStatus_NO_MEMORY() error message.
* gh-108444: Replace _PyLong_AsInt() with PyLong_AsInt() (#108459)Victor Stinner2023-08-241-1/+1
| | | | | | Change generated by the command: sed -i -e 's!_PyLong_AsInt!PyLong_AsInt!g' \ $(find -name "*.c" -o -name "*.h")
* gh-108308: config_dict_get() uses PyDict_GetItemRef() (#108371)Victor Stinner2023-08-231-6/+19
| | | | Replace _PyDict_GetItemStringWithError() with PyDict_GetItemRef() in config_dict_get() to get a strong reference to the item.
* gh-106320: Remove _PyDict_GetItemStringWithError() function (#108313)Victor Stinner2023-08-221-0/+1
| | | | | | | | | Remove private _PyDict_GetItemStringWithError() function of the public C API: the new PyDict_GetItemStringRef() can be used instead. * Move private _PyDict_GetItemStringWithError() to the internal C API. * _testcapi get_code_extra_index() uses PyDict_GetItemStringRef(). Avoid using private functions in _testcapi which tests the public C API.
* Document PYTHONSAFEPATH along side -P (#106122)Jeremy Paige2023-07-031-2/+2
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* Fix duplicate word typos in comments (#106225)Md Sadman Chowdhury2023-07-011-1/+1
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* gh-105145: Remove old functions to config Python init (#105154)Victor Stinner2023-06-011-108/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the following old functions to configure the Python initialization, deprecated in Python 3.11: * PySys_AddWarnOptionUnicode() * PySys_AddWarnOption() * PySys_AddXOption() * PySys_HasWarnOptions() * PySys_SetArgvEx() * PySys_SetArgv() * PySys_SetPath() * Py_SetPath() * Py_SetProgramName() * Py_SetPythonHome() * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Most of these functions are kept in the stable ABI, except: * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Update Doc/extending/embedding.rst and Doc/extending/extending.rst to use the new PyConfig API. _testembed.c: * check_stdio_details() now sets stdio_encoding and stdio_errors of PyConfig. * Add definitions of functions removed from the API but kept in the stable ABI. * test_init_from_config() and test_init_read_set() now use PyConfig_SetString() instead of PyConfig_SetBytesString(). Remove _Py_ClearStandardStreamEncoding() internal function.
* gh-103167: Fix `-Wstrict-prototypes` warnings by using `(void)` for ↵Nikita Sobolev2023-04-051-2/+2
| | | | functions with no args (GH-103168)
* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-02-281-1/+1
| | | | (in Python/) (#102193)
* GH-101578: Normalize the current exception (GH-101607)Mark Shannon2023-02-081-3/+2
| | | | | | | | | | * Make sure that the current exception is always normalized. * Remove redundant type and traceback fields for the current exception. * Add new API functions: PyErr_GetRaisedException, PyErr_SetRaisedException * Add new API functions: PyException_GetArgs, PyException_SetArgs
* gh-95778: add doc missing in some places (GH-100627)Éric2022-12-301-0/+2
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* GH-100143: Improve collecting pystats for parts of runs (GH-100144)Michael Droettboom2022-12-121-1/+14
| | | | | | | | * pystats off by default * Add -Xpystats flag * Always dump pystats, even if turned off
* gh-81057: Move More Globals to _PyRuntimeState (gh-100092)Eric Snow2022-12-071-8/+6
| | | https://github.com/python/cpython/issues/81057
* gh-99300: Use Py_NewRef() in Python/ directory (#99302)Victor Stinner2022-11-101-2/+2
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in C files of the Python/ directory.
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-261-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | (gh-98609) (see https://github.com/python/cpython/issues/98608) This change does the following: 1. change the argument to a new `_PyInterpreterConfig` struct 2. rename the function to `_Py_NewInterpreterFromConfig()`, inspired by `Py_InitializeFromConfig()` (takes a `_PyInterpreterConfig` instead of `isolated_subinterpreter`) 3. split up the boolean `isolated_subinterpreter` into the corresponding multiple granular settings * allow_fork * allow_subprocess * allow_threads 4. add `PyInterpreterState.feature_flags` to store those settings 5. add a function for checking if a feature is enabled on an opaque `PyInterpreterState *` 6. drop `PyConfig._isolated_interpreter` The existing default (see `Py_NewInterpeter()` and `Py_Initialize*()`) allows fork, subprocess, and threads and the optional "isolated" interpreter (see the `_xxsubinterpreters` module) disables all three. None of that changes here; the defaults are preserved. Note that the given `_PyInterpreterConfig` will not be used outside `_Py_NewInterpreterFromConfig()`, nor preserved. This contrasts with how `PyConfig` is currently preserved, used, and even modified outside `Py_InitializeFromConfig()`. I'd rather just avoid that mess from the start for `_PyInterpreterConfig`. We can preserve it later if we find an actual need. This change allows us to follow up with a number of improvements (e.g. stop disallowing subprocess and support disallowing exec instead). (Note that this PR adds "private" symbols. We'll probably make them public, and add docs, in a separate change.)
* gh-96512: Move int_max_str_digits setting to PyConfig (#96944)Gregory P. Smith2022-10-031-9/+21
| | | | | | | | | | | It had to live as a global outside of PyConfig for stable ABI reasons in the pre-3.12 backports. This removes the `_Py_global_config_int_max_str_digits` and gets rid of the equivalent field in the internal `struct _is PyInterpreterState` as code can just use the existing nested config struct within that. Adds tests to verify unique settings and configs in subinterpreters.
* gh-96848: Fix -X int_max_str_digits option parsing (#96988)Victor Stinner2022-09-261-1/+2
| | | | | Fix command line parsing: reject "-X int_max_str_digits" option with no value (invalid) when the PYTHONINTMAXSTRDIGITS environment variable is set to a valid limit.
* gh-95778: CVE-2020-10735: Prevent DoS by very large int() (#96499)Gregory P. Smith2022-09-021-1/+64
| | | | | | | | | | | | | | | | Integer to and from text conversions via CPython's bignum `int` type is not safe against denial of service attacks due to malicious input. Very large input strings with hundred thousands of digits can consume several CPU seconds. This PR comes fresh from a pile of work done in our private PSRT security response team repo. Signed-off-by: Christian Heimes [Red Hat] <christian@python.org> Tons-of-polishing-up-by: Gregory P. Smith [Google] <greg@krypto.org> Reviews via the private PSRT repo via many others (see the NEWS entry in the PR). <!-- gh-issue-number: gh-95778 --> * Issue: gh-95778 <!-- /gh-issue-number --> I wrote up [a one pager for the release managers](https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y/edit#). Much of that text wound up in the Issue. Backports PRs already exist. See the issue for links.
* gh-96143: Allow Linux perf profiler to see Python calls (GH-96123)Pablo Galindo Salgado2022-08-301-0/+39
| | | | | | | :warning: :warning: Note for reviewers, hackers and fellow systems/low-level/compiler engineers :warning: :warning: If you have a lot of experience with this kind of shenanigans and want to improve the **first** version, **please make a PR against my branch** or **reach out by email** or **suggest code changes directly on GitHub**. If you have any **refinements or optimizations** please, wait until the first version is merged before starting hacking or proposing those so we can keep this PR productive.
* bpo-45445: Revert "bpo-45445: Fail if an invalid X-option is provided in the ↵Pablo Galindo Salgado2022-07-311-48/+0
| | | | command line (GH-28823)" (#94745)
* gh-91256: Ensure help text has the program name even before getpath is ↵Steve Dower2022-07-191-0/+3
| | | | called (GH-94929)
* gh-93937: PyOS_StdioReadline() uses PyConfig.legacy_windows_stdio (#94024)Victor Stinner2022-06-201-0/+3
| | | | | | | On Windows, PyOS_StdioReadline() now gets PyConfig.legacy_windows_stdio from _PyOS_ReadlineTState, rather than using the deprecated global Py_LegacyWindowsStdioFlag variable. Fix also a compiler warning in Py_SetStandardStreamEncoding().
* gh-77782: Deprecate global configuration variable (#93943)Victor Stinner2022-06-171-0/+12
| | | | | | | Deprecate global configuration variable like Py_IgnoreEnvironmentFlag: the Py_InitializeFromConfig() API should be instead. Fix declaration of Py_GETENV(): use PyAPI_FUNC(), not PyAPI_DATA().
* gh-77782: Py_FdIsInteractive() now uses PyConfig.interactive (#93916)Victor Stinner2022-06-171-1/+1
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* gh-90300: split --help output into separate options (#30331)Éric2022-06-011-64/+118
| | | | | | Make --help output shorter and add new help options. --help-env, --help-xoptions and --help-all command-line options are added to complement --help.
* gh-93217: fix some issues in man page and --help (#93219)Éric2022-05-261-5/+4
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* gh-57684: Update tests for PYTHONSAFEPATH=1 (#92358)Victor Stinner2022-05-061-1/+1
| | | | | Fix tests failing with the PYTHONSAFEPATH=1 env var. Enhance also -P help in Python usage (python --help).
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