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* [3.7] gh-95778: CVE-2020-10735: Prevent DoS by very large int() (GH-96504)Gregory P. Smith2022-09-061-2/+8
| | | | | | | | | | | | | | | | Converting between `int` and `str` in bases other than 2 (binary), 4, 8 (octal), 16 (hexadecimal), or 32 such as base 10 (decimal) now raises a `ValueError` if the number of digits in string form is above a limit to avoid potential denial of service attacks due to the algorithmic complexity. This is a mitigation for CVE-2020-10735 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10735). This new limit can be configured or disabled by environment variable, command line flag, or :mod:`sys` APIs. See the `Integer String Conversion Length Limitation` documentation. The default limit is 4300 digits in string form. Patch by Gregory P. Smith [Google] and Christian Heimes [Red Hat] with feedback from Victor Stinner, Thomas Wouters, Steve Dower, Ned Deily, and Mark Dickinson.
* [3.7] bpo-43660: Fix crash when displaying exceptions with custom values for ↵Pablo Galindo2021-03-291-0/+15
| | | | | | | sys.stderr (GH-25075). (GH-25085) (cherry picked from commit 09b90a037d18f5d4acdf1b14082e57bda78e85d3) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-37467: Fix PyErr_Display() for bytes filename (GH-14504) (GH-14515)Victor Stinner2019-07-011-48/+75
| | | | | | | | | | | | | | | | Fix sys.excepthook() and PyErr_Display() if a filename is a bytes string. For example, for a SyntaxError exception where the filename attribute is a bytes string. Cleanup also test_sys: * Sort imports. * Rename numruns global var to INTERN_NUMRUNS. * Add DisplayHookTest and ExceptHookTest test case classes. * Don't save/restore sys.stdout and sys.displayhook using setUp()/tearDown(): do it in each test method. * Test error case (call hook with no argument) after the success case. (cherry picked from commit f9b7457bd7f438263e0d2dd1f70589ad56a2585e)
* bpo-36611: Fix test_sys.test_getallocatedblocks() (GH-12797)Miss Islington (bot)2019-04-121-2/+7
| | | | | | | | | | | | | | | | | | | Fix test_sys.test_getallocatedblocks() when tracemalloc is enabled. If the name of Python memory allocators cannot get read, consider that pymalloc is disabled. Fix the following error: ./python -X tracemalloc -m test test_sys -v -m test_getallocatedblocks ERROR: test_getallocatedblocks (test.test_sys.SysModuleTest) ------------------------------------------------------------ Traceback (most recent call last): File "Lib/test/test_sys.py", line 770, in test_getallocatedblocks alloc_name = _testcapi.pymem_getallocatorsname() RuntimeError: cannot get allocators name (cherry picked from commit 9b8314cfe29ca532fc335277f6c36b72e6132922) Co-authored-by: Victor Stinner <vstinner@redhat.com>
* Revert "[3.7] bpo-34589: Add -X coerce_c_locale option; C locale coercion ↵Victor Stinner2018-09-191-5/+3
| | | | | off by default (GH-9379)" (GH-9416) This reverts commit 144f1e2c6f4a24bd288c045986842c65cc289684.
* [3.7] bpo-34589: Add -X coerce_c_locale option; C locale coercion off by ↵Victor Stinner2018-09-181-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | default (GH-9379) * bpo-34589: Make _PyCoreConfig.coerce_c_locale private (GH-9371) _PyCoreConfig: * Rename coerce_c_locale to _coerce_c_locale * Rename coerce_c_locale_warn to _coerce_c_locale_warn These fields are now private (name prefixed by "_"). (cherry picked from commit 188ebfa475a6f6aa2d0ea14ca8e1fbe7865b6d27) * bpo-34589: C locale coercion off by default (GH-9073) Py_Initialize() and Py_Main() cannot enable the C locale coercion (PEP 538) anymore: it is always disabled. It can now only be enabled by the Python program ("python3). test_embed: get_filesystem_encoding() doesn't have to set PYTHONUTF8 nor PYTHONCOERCECLOCALE, these variables are already set in the parent. (cherry picked from commit 7a0791b6992d420dc52536257f2f093851ed7215) * bpo-34589: Add -X coerce_c_locale command line option (GH-9378) Add a new -X coerce_c_locale command line option to control C locale coercion (PEP 538). (cherry picked from commit dbdee0073cf0b88fe541980ace1f650900f455cc)
* [3.7] bpo-34485: stdout uses surrogateescape on POSIX locale (GH-8986) (GH-8987)Victor Stinner2018-08-291-11/+17
| | | | | | | | | | | | | | | * bpo-34485: stdout uses surrogateescape on POSIX locale (GH-8986) Standard streams like sys.stdout now use the "surrogateescape" error handler, instead of "strict", on the POSIX locale (when the C locale is not coerced and the UTF-8 Mode is disabled). Add tests on sys.stdout.errors with LC_ALL=POSIX. Fix the error handler of standard streams like sys.stdout: PYTHONIOENCODING=":" is now ignored instead of setting the error handler to "strict". (cherry picked from commit 315877dc361d554bec34b4b62c270479ad36a1be)
* bpo-33128 Fix duplicated call to importlib._install_external_importers ↵Miss Islington (bot)2018-04-251-0/+3
| | | | | | | | | | | | (GH-6273) External importers were being added in both phases of the import system initialisation. They're only supposed to be added in the second phase, after the import machinery has been appropriately configured. (cherry picked from commit 0977091dca59709864b14cfc129388f1f0de7bf7) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-29240: PEP 540: Add a new UTF-8 Mode (#855)Victor Stinner2017-12-131-3/+5
| | | | | | | | | | | | | | | | | | | | | | * Add -X utf8 command line option, PYTHONUTF8 environment variable and a new sys.flags.utf8_mode flag. * If the LC_CTYPE locale is "C" at startup: enable automatically the UTF-8 mode. * Add _winapi.GetACP(). encodings._alias_mbcs() now calls _winapi.GetACP() to get the ANSI code page * locale.getpreferredencoding() now returns 'UTF-8' in the UTF-8 mode. As a side effect, open() now uses the UTF-8 encoding by default in this mode. * Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding in the UTF-8 Mode. * Update subprocess._args_from_interpreter_flags() to handle -X utf8 * Skip some tests relying on the current locale if the UTF-8 mode is enabled. * Add test_utf8mode.py. * _Py_DecodeUTF8_surrogateescape() gets a new optional parameter to return also the length (number of wide characters). * pymain_get_global_config() and pymain_set_global_config() now always copy flag values, rather than only copying if the new value is greater than the old value.
* bpo-32101: Add PYTHONDEVMODE environment variable (#4624)Victor Stinner2017-11-301-2/+4
| | | | | | * bpo-32101: Add sys.flags.dev_mode flag Rename also the "Developer mode" to the "Development mode". * bpo-32101: Add PYTHONDEVMODE environment variable Mention it in the development chapiter.
* bpo-32030: Rework memory allocators (#4625)Victor Stinner2017-11-291-1/+8
| | | | | | | | | | | | | | | | | | | | * Fix _PyMem_SetupAllocators("debug"): always restore allocators to the defaults, rather than only caling _PyMem_SetupDebugHooks(). * Add _PyMem_SetDefaultAllocator() helper to set the "default" allocator. * Add _PyMem_GetAllocatorsName(): get the name of the allocators * main() now uses debug hooks on memory allocators if Py_DEBUG is defined, rather than calling directly malloc() * Document default memory allocators in C API documentation * _Py_InitializeCore() now fails with a fatal user error if PYTHONMALLOC value is an unknown memory allocator, instead of failing with a fatal internal error. * Add new tests on the PYTHONMALLOC environment variable * Add support.with_pymalloc() * Add the _testcapi.WITH_PYMALLOC constant and expose it as support.with_pymalloc(). * sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so replace it with support.with_pymalloc(). * pythoninfo: add _testcapi collector for pymem
* bpo-31949: Fixed several issues in printing tracebacks ↵Serhiy Storchaka2017-11-151-0/+33
| | | | | | | | | | | | (PyTraceBack_Print()). (#4289) * Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks. * Setting sys.tracebacklimit to None now causes using the default limit. * Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using the limit LONG_MAX rather than the default limit. * Fixed integer overflows in the case of more than 2**31 traceback items on Windows. * Fixed output errors handling.
* Fix the sizeof test for dicts with shared keys. (#4311)Serhiy Storchaka2017-11-071-5/+10
| | | | By accident the size of the empty dict keys object matched the size of values array.
* Move exc state to generator. Fixes bpo-25612 (#1773)Mark Shannon2017-10-221-2/+2
| | | Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
* bpo-31344: Per-frame control of trace events (GH-3417)Nick Coghlan2017-09-081-1/+1
| | | | | | | | | f_trace_lines: enable/disable line trace events f_trace_opcodes: enable/disable opcode trace events These are intended primarily for testing of the interpreter itself, as they make it much easier to emulate signals arriving at unfortunate times.
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-30/+2
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* bpo-28180: Implementation for PEP 538 (#659)Nick Coghlan2017-06-111-0/+1
| | | | | | | | | | - new PYTHONCOERCECLOCALE config setting - coerces legacy C locale to C.UTF-8, C.utf8 or UTF-8 by default - always uses C.UTF-8 on Android - uses `surrogateescape` on stdin and stdout in the coercion target locales - configure option to disable locale coercion at build time - configure option to disable C locale warning at build time
* bpo-12414: Update code_sizeof() to take in account co_extra memory. (#1168)Dong-hee Na2017-04-201-3/+5
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* bpo-29919: Remove unused imports found by pyflakes (#137)Victor Stinner2017-03-271-1/+0
| | | Make also minor PEP8 coding style fixes on modified imports.
* bpo-6532: Make the thread id an unsigned integer. (#781)Serhiy Storchaka2017-03-231-0/+3
| | | | | | | | | | | * bpo-6532: Make the thread id an unsigned integer. From C API side the type of results of PyThread_start_new_thread() and PyThread_get_thread_ident(), the id parameter of PyThreadState_SetAsyncExc(), and the thread_id field of PyThreadState changed from "long" to "unsigned long". * Restore a check in thread_get_ident().
* Issue #18896: Python function can now have more than 255 parameters.Serhiy Storchaka2016-12-161-1/+1
| | | | collections.namedtuple() now supports tuples with more than 255 elements.
* Add sys.getandroidapilevel()Victor Stinner2016-12-021-0/+7
| | | | | | | Issue #28740: Add sys.getandroidapilevel(): return the build time API version of Android as an integer. Function only available on Android.
* Try to fix sizeof unit tests on dictVictor Stinner2016-09-101-3/+3
| | | | Issue #28056 and issue #26058.
* Issue #28003: Implement PEP 525 -- Asynchronous Generators.Yury Selivanov2016-09-091-0/+26
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* Issue #24254: Drop cls.__definition_order__.Eric Snow2016-09-081-1/+1
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* Add a new private version to the builtin dict typeVictor Stinner2016-09-081-3/+3
| | | | | | | Issue #26058: Add a new private version to the builtin dict type, incremented at each dictionary creation and at each dictionary change. Implementation of the PEP 509.
* Fixes tests broken by issue #27781.Steve Dower2016-09-081-2/+3
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* Implement compact dictVictor Stinner2016-09-081-5/+5
| | | | | | | | | | | | Issue #27350: `dict` implementation is changed like PyPy. It is more compact and preserves insertion order. _PyDict_Dummy() function has been removed. Disable test_gdb: python-gdb.py is not updated yet to the new structure of compact dictionaries (issue #28023). Patch written by INADA Naoki.
* fix expected layout of code objectsBenjamin Peterson2016-09-071-3/+3
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* Issue #24254: Preserve class attribute definition order.Eric Snow2016-09-051-1/+1
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* Issue #19527: Fixed tests with defined COUNT_ALLOCS.Serhiy Storchaka2016-07-031-2/+6
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* Issue #26778: Fixed "a/an/and" typos in code comment and documentation.Serhiy Storchaka2016-04-171-1/+1
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* Issue #25339: PYTHONIOENCODING now has priority over locale in setting theSerhiy Storchaka2016-04-101-4/+23
| | | | error handler for stdin and stdout.
* Fixed sizeof tests for dict and type (they were passed by accident).Serhiy Storchaka2015-12-201-11/+22
| | | | Added tests for dict views iterators.
* Don't create non-needed file.Serhiy Storchaka2015-12-201-5/+0
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* Use correct PyGC_Head size in tests for issue #25421.Serhiy Storchaka2015-12-191-1/+1
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* Issue #25421: __sizeof__ methods of builtin types now use dynamic basic size.Serhiy Storchaka2015-12-191-0/+30
| | | | | This allows sys.getsize() to work correctly with their subclasses with __slots__ defined.
* sys.setrecursionlimit() now raises RecursionErrorVictor Stinner2015-10-121-7/+45
| | | | | | | Issue #25274: sys.setrecursionlimit() now raises a RecursionError if the new recursion limit is too low depending at the current recursion depth. Modify also the "lower-water mark" formula to make it monotonic. This mark is used to decide when the overflowed flag of the thread state is reset.
* (Merge 3.4) Issue #25274: test_recursionlimit_recovery() of test_sys now checksVictor Stinner2015-10-011-2/+3
|\ | | | | | | | | | | sys.gettrace() when the test is executed, not when the module is loaded. sys.settrace() may be after after the test is loaded.
| * Issue #25274: test_recursionlimit_recovery() of test_sys now checksVictor Stinner2015-10-011-2/+3
| | | | | | | | | | | | sys.gettrace() when the test is executed, not when the module is loaded. sys.settrace() may be after after the test is loaded.
* | Issue #19235: Add new RecursionError exception. Patch by Georg Brandl.Yury Selivanov2015-07-031-3/+3
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* | PEP 0492 -- Coroutines with async and await syntax. Issue #24017.Yury Selivanov2015-05-121-2/+2
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* | Issue #9517: Move script_helper to the support package.Berker Peksag2015-05-061-2/+2
| | | | | | | | Patch by Christie Wilson.
* | Issue #23629: Fix the default __sizeof__ implementation for variable-sized ↵Antoine Pitrou2015-03-101-2/+3
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| * Issue #23629: Fix the default __sizeof__ implementation for variable-sized ↵Antoine Pitrou2015-03-101-2/+3
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* | merge 3.4Benjamin Peterson2015-02-021-1/+1
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| * adjust for py3k module renamingBenjamin Peterson2015-02-021-1/+1
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* | merge 3.4Benjamin Peterson2015-02-021-0/+1
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| * _clear_type_cache is cpython-onlyBenjamin Peterson2015-02-021-0/+1
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* | Closes #22668: Merge from 3.4.Stefan Krah2015-01-291-1/+1
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