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* bpo-28685: Fix compiler warning (GH-5423)Victor Stinner2018-01-291-1/+2
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* bpo-28685: Optimize sorted() list.sort() with type-specialized comparisons ↵embg2018-01-292-71/+345
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* bpo-32690: Preserve order of locals() (#5379)Raymond Hettinger2018-01-281-2/+2
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* bpo-32685: Improve suggestion for print statement (GH-5375)Nitish Chandra2018-01-281-14/+19
| | | | | | | Better account for single-line compound statements and semi-colon separated statements when suggesting Py3 replacements for Py2 print statements. Initial patch by Nitish Chandra.
* bpo-32677: Optimize str.isascii() (GH-5356)INADA Naoki2018-01-281-4/+36
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* Fix wrong assert in unicodeobject (GH-5340)INADA Naoki2018-01-271-1/+1
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* bpo-32677: Add .isascii() to str, bytes and bytearray (GH-5342)INADA Naoki2018-01-276-1/+72
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* bpo-32670: Enforce PEP 479. (#5327)Yury Selivanov2018-01-261-50/+8
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* bpo-18533: Avoid RecursionError from repr() of recursive dictview (#4823)bennorth2018-01-261-4/+12
| | | | | | | | | | | | | | | | | dictview_repr(): Use a Py_ReprEnter() / Py_ReprLeave() pair to check for recursion, and produce "..." if so. test_recursive_repr(): Check for the string rather than a RecursionError. (Test cannot be any tighter as contents are implementation-dependent.) test_deeply_nested_repr(): Add new test, replacing the original test_recursive_repr(). It checks that a RecursionError is raised in the case of a non-recursive but deeply nested structure. (Very similar to what test_repr_deep() in test/test_dict.py does for a normal dict.) OrderedDictTests: Add new test case, to test behavior on OrderedDict instances containing their own values() or items().
* bpo-32571: Fix reading uninitialized memory (GH-5332)INADA Naoki2018-01-261-0/+5
| | | Reported by Coverity Scan.
* bpo-32571: Avoid raising unneeded AttributeError and silencing it in C code ↵Serhiy Storchaka2018-01-257-131/+106
| | | | | (GH-5222) Add two new private APIs: _PyObject_LookupAttr() and _PyObject_LookupAttrId()
* bpo-32436: Implement PEP 567 (#5027)Yury Selivanov2018-01-231-0/+1
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* bpo-31179: Make dict.copy() up to 5.5 times faster. (#3067)Yury Selivanov2018-01-221-0/+73
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* bpo-32591: Add native coroutine origin tracking (#5250)Nathaniel J. Smith2018-01-211-4/+57
| | | | | | * Add coro.cr_origin and sys.set_coroutine_origin_tracking_depth * Use coroutine origin information in the unawaited coroutine warning * Stop using set_coroutine_wrapper in asyncio debug mode * In BaseEventLoop.set_debug, enable debugging in the correct thread
* bpo-32028: Fix suggestions for indented print statements (GH-4688)Sanyam Khurana2018-01-201-5/+11
| | | | | | | The suggested replacement for print statements previously failed to account for leading whitespace and hence could end up including unwanted text in the proposed call to the print builtin. Patch by Sanyam Khurana.
* Removed unnecesssary bit inversion which doesn't improve dispersion ↵Raymond Hettinger2018-01-181-1/+1
| | | | statistics (#5235)
* bpo-32544: Speed up hasattr() and getattr() (GH-5173)INADA Naoki2018-01-161-6/+50
| | | | | AttributeError was raised always when attribute is not found. This commit skip raising AttributeError when `tp_getattro` is `PyObject_GenericGetAttr`. It makes hasattr() and getattr() about 4x faster when attribute is not found.
* bpo-26163: Frozenset hash improvement (#5194)Raymond Hettinger2018-01-161-0/+1
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* bpo-29240: Fix locale encodings in UTF-8 Mode (#5170)Victor Stinner2018-01-151-331/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | Modify locale.localeconv(), time.tzname, os.strerror() and other functions to ignore the UTF-8 Mode: always use the current locale encoding. Changes: * Add _Py_DecodeLocaleEx() and _Py_EncodeLocaleEx(). On decoding or encoding error, they return the position of the error and an error message which are used to raise Unicode errors in PyUnicode_DecodeLocale() and PyUnicode_EncodeLocale(). * Replace _Py_DecodeCurrentLocale() with _Py_DecodeLocaleEx(). * PyUnicode_DecodeLocale() now uses _Py_DecodeLocaleEx() for all cases, especially for the strict error handler. * Add _Py_DecodeUTF8Ex(): return more information on decoding error and supports the strict error handler. * Rename _Py_EncodeUTF8_surrogateescape() to _Py_EncodeUTF8Ex(). * Replace _Py_EncodeCurrentLocale() with _Py_EncodeLocaleEx(). * Ignore the UTF-8 mode to encode/decode localeconv(), strerror() and time zone name. * Remove PyUnicode_DecodeLocale(), PyUnicode_DecodeLocaleAndSize() and PyUnicode_EncodeLocale() now ignore the UTF-8 mode: always use the "current" locale. * Remove _PyUnicode_DecodeCurrentLocale(), _PyUnicode_DecodeCurrentLocaleAndSize() and _PyUnicode_EncodeCurrentLocale().
* bpo-29476: Simplify set_add_entry() (#5175)Raymond Hettinger2018-01-141-2/+2
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* bpo-29240: Ignore UTF-8 Mode in time module (#5148)Victor Stinner2018-01-111-0/+6
| | | | | | time.strftime() must use the current LC_CTYPE encoding, not UTF-8 if the UTF-8 mode is enabled. Add _PyUnicode_DecodeCurrentLocale() function.
* bpo-29240: readline now ignores the UTF-8 Mode (#5145)Victor Stinner2018-01-101-10/+52
| | | | | | | | | | | | Add new fuctions ignoring the UTF-8 mode: * _Py_DecodeCurrentLocale() * _Py_EncodeCurrentLocale() * _PyUnicode_DecodeCurrentLocaleAndSize() * _PyUnicode_EncodeCurrentLocale() Modify the readline module to use these functions. Re-enable test_readline.test_nonascii().
* bpo-32226: Make __class_getitem__ an automatic class method. (#5098)Serhiy Storchaka2018-01-042-4/+17
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* Fix outdated comment in typeobject.c (GH-5090)Berker Peksag2018-01-041-1/+1
| | | | | The comment was added in 3abca127fe1565ec80f6b0a1ae48d65186ad887d. In d78448e912126410117723c7d240bbdfff06df16, it was changed to use PyArg_ParseTuple instead.
* bpo-32468: Better frame repr() (#5067)Antoine Pitrou2017-12-311-1/+10
| | | | bpo-32468: Better frame repr()
* bpo-32030: Add _Py_EncodeLocaleRaw() (#4961)Victor Stinner2017-12-211-4/+21
| | | | | | | | | | | | Replace Py_EncodeLocale() with _Py_EncodeLocaleRaw() in: * _Py_wfopen() * _Py_wreadlink() * _Py_wrealpath() * _Py_wstat() * pymain_open_filename() These functions are called early during Python intialization, only the RAW memory allocator must be used.
* bpo-32030: Add _Py_EncodeUTF8_surrogateescape() (#4960)Victor Stinner2017-12-211-0/+89
| | | | | Py_EncodeLocale() now uses _Py_EncodeUTF8_surrogateescape(), instead of using temporary unicode and bytes objects. So Py_EncodeLocale() doesn't use the Python C API anymore.
* bpo-32385: Clean up the C3 MRO algorithm implementation. (#4942)Serhiy Storchaka2017-12-201-77/+64
| | | Use tuples and raw arrays instead of lists.
* bpo-32379: Faster MRO computation for single inheritance (#4932)Antoine Pitrou2017-12-201-4/+36
| | | | * bpo-32379: Faster MRO computation for single inheritance
* bpo-32240: Add the const qualifier to declarations of PyObject* array ↵Serhiy Storchaka2017-12-1513-85/+89
| | | | arguments. (#4746)
* bpo-32226: Implementation of PEP 560 (core components) (#4732)Ivan Levkivskyi2017-12-142-0/+36
| | | | | This part of the PEP implementation adds support for __mro_entries__ and __class_getitem__ by updating __build_class__ and PyObject_GetItem.
* bpo-32225: Implementation of PEP 562 (#4731)Ivan Levkivskyi2017-12-141-4/+18
| | | | | Implement PEP 562: module __getattr__ and __dir__. The implementation simply updates module_getattro and module_dir.
* bpo-29240: PEP 540: Add a new UTF-8 Mode (#855)Victor Stinner2017-12-131-9/+21
| | | | | | | | | | | | | | | | | | | | | | * 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-32241: Add the const qualifire to declarations of umodifiable strings. ↵Serhiy Storchaka2017-12-121-1/+1
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* bpo-31506: Improve the error message logic for class instantiation (GH-4740)Sanyam Khurana2017-12-101-3/+3
| | | | | | | | | | | | The error messages in `object.__new__` and `object.__init__` now aim to point the user more directly at the name of the class being instantiated in cases where they *haven't* been overridden (on the assumption that the actual problem is a missing `__new__` or `__init__` definition in the class body). When they *have* been overridden, the errors still report themselves as coming from object, on the assumption that the problem is with the call up to the base class in the method implementation, rather than with the way the constructor is being called.
* PyLong_FromString(): fix Coverity CID 1424951 (#4738)Victor Stinner2017-12-071-3/+2
| | | | | | | | | | | Explicitly cast digits (Py_ssize_t) to double to fix the following false-alarm warning from Coverity: "fsize_z = digits * log_base_BASE[base] + 1;" CID 1424951: Incorrect expression (UNINTENDED_INTEGER_DIVISION) Dividing integer expressions "9223372036854775783UL" and "4UL", and then converting the integer quotient to type "double". Any remainder, or fractional part of the quotient, is ignored.
* bpo-32030: Add pymain_get_global_config() (#4735)Victor Stinner2017-12-061-2/+10
| | | | | | | | | | | | | * Py_Main() now starts by reading Py_xxx configuration variables to only work on its own private structure, and then later writes back the configuration into these variables. * Replace Py_GETENV() with pymain_get_env_var() which ignores empty variables. * Add _PyCoreConfig.dump_refs * Add _PyCoreConfig.malloc_stats * _PyObject_DebugMallocStats() is now responsible to check if debug hooks are installed. The function returns 1 if stats were written, or 0 if the hooks are disabled. Mark _PyMem_PymallocEnabled() as static.
* bpo-31619: Fixed integer overflow in converting huge strings to int. (#3884)Serhiy Storchaka2017-12-031-3/+11
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* bpo-32137: The repr of deeply nested dict now raises a RecursionError (#4570)Serhiy Storchaka2017-12-033-6/+5
| | | | | instead of crashing due to a stack overflow. This perhaps will fix similar problems in other extension types.
* bpo-32176: Set CO_NOFREE in the code object constructor (GH-4675)Nick Coghlan2017-12-031-1/+9
| | | | | | | | Previously, CO_NOFREE was set in the compiler, which meant it could end up being set incorrectly when code objects were created directly. Setting it in the constructor based on freevars and cellvars ensures it is always accurate, regardless of how the code object is defined.
* bpo-32030: Cleanup "path config" code (#4663)Victor Stinner2017-12-011-12/+12
| | | | | | | | | | * Rename PyPathConfig structure to _PyPathConfig and move it to Include/internal/pystate.h * Rename path_config to _Py_path_config * _PyPathConfig: Rename program_name field to program_full_path * Add assert(str != NULL); to _PyMem_RawWcsdup(), _PyMem_RawStrdup() and _PyMem_Strdup(). * Rename calculate_path() to pathconfig_global_init(). The function now does nothing if it's already initiallized.
* bpo-32030: Rework memory allocators (#4625)Victor Stinner2017-11-291-93/+199
| | | | | | | | | | | | | | | | | | | | * 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-32030: Add _PyMainInterpreterConfig_ReadEnv() (#4542)Victor Stinner2017-11-241-0/+18
| | | | | | | | | | | | | | | | | | Py_GetPath() and Py_Main() now call _PyMainInterpreterConfig_ReadEnv() to share the same code to get environment variables. Changes: * Add _PyMainInterpreterConfig_ReadEnv() * Add _PyMainInterpreterConfig_Clear() * Add _PyMem_RawWcsdup() * _PyMainInterpreterConfig: rename pythonhome to home * Rename _Py_ReadMainInterpreterConfig() to _PyMainInterpreterConfig_Read() * Use _Py_INIT_USER_ERR(), instead of _Py_INIT_ERR(), for decoding errors: the user is able to fix the issue, it's not a bug in Python. Same change was made in _Py_INIT_NO_MEMORY(). * Remove _Py_GetPythonHomeWithConfig()
* bpo-32096: Remove obj and mem from _PyRuntime (#4532)Victor Stinner2017-11-241-186/+647
| | | | | | | | | | | | | | | | | bpo-32096, bpo-30860: Partially revert the commit 2ebc5ce42a8a9e047e790aefbf9a94811569b2b6: * Move structures back from Include/internal/mem.h to Objects/obmalloc.c * Remove _PyObject_Initialize() and _PyMem_Initialize() * Remove Include/internal/pymalloc.h * Add test_capi.test_pre_initialization_api(): Make sure that it's possible to call Py_DecodeLocale(), and then call Py_SetProgramName() with the decoded string, before Py_Initialize(). PyMem_RawMalloc() and Py_DecodeLocale() can be called again before _PyRuntimeState_Init(). Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
* bpo-31979: Remove unused align_maxchar() function (#4527)Victor Stinner2017-11-231-13/+0
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* bpo-32030: Add more options to _PyCoreConfig (#4485)Victor Stinner2017-11-213-36/+9
| | | | | | Py_Main() now handles two more -X options: * -X showrefcount: new _PyCoreConfig.show_ref_count field * -X showalloccount: new _PyCoreConfig.show_alloc_count field
* bpo-32043: New "developer mode": "-X dev" option (#4413)Victor Stinner2017-11-161-10/+9
| | | | | | | | | | | | | Add a new "developer mode": new "-X dev" command line option to enable debug checks at runtime. Changes: * Add unit tests for -X dev * test_cmd_line: replace test.support with support. * Fix _PyRuntimeState_Fini(): Use the same memory allocator than _PyRuntimeState_Init(). * Fix _PyMem_GetDefaultRawAllocator()
* bpo-32030: Split Py_Main() into subfunctions (#4399)Victor Stinner2017-11-151-36/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Don't use "Python runtime" anymore to parse command line options or to get environment variables: pymain_init() is now a strict separation. * Use an error message rather than "crashing" directly with Py_FatalError(). Limit the number of calls to Py_FatalError(). It prepares the code to handle errors more nicely later. * Warnings options (-W, PYTHONWARNINGS) and "XOptions" (-X) are now only added to the sys module once Python core is properly initialized. * _PyMain is now the well identified owner of some important strings like: warnings options, XOptions, and the "program name". The program name string is now properly freed at exit. pymain_free() is now responsible to free the "command" string. * Rename most methods in Modules/main.c to use a "pymain_" prefix to avoid conflits and ease debug. * Replace _Py_CommandLineDetails_INIT with memset(0) * Reorder a lot of code to fix the initialization ordering. For example, initializing standard streams now comes before parsing PYTHONWARNINGS. * Py_Main() now handles errors when adding warnings options and XOptions. * Add _PyMem_GetDefaultRawAllocator() private function. * Cleanup _PyMem_Initialize(): remove useless global constants: move them into _PyMem_Initialize(). * Call _PyRuntime_Initialize() as soon as possible: _PyRuntime_Initialize() now returns an error message on failure. * Add _PyInitError structure and following macros: * _Py_INIT_OK() * _Py_INIT_ERR(msg) * _Py_INIT_USER_ERR(msg): "user" error, don't abort() in that case * _Py_INIT_FAILED(err)
* bpo-30399: Get rid of trailing comma in the repr of BaseException. (#1650)Serhiy Storchaka2017-11-151-1/+5
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* bpo-16055: Fixes incorrect error text for int('1', base=1000) (#4376)Sanyam Khurana2017-11-131-1/+1
| | | | | | * bpo-16055: Fixes incorrect error text for int('1', base=1000) * bpo-16055: Address review comments
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