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* gh-91320: Fix more old-style cast warnings in C++ (#93285)Victor Stinner2022-06-021-1/+1
| | | | Use _PyObject_CAST() in the public C API to fix C++ compiler warnings: "use of old-style cast" (clang -Wold-style-cast).
* gh-90501: Add PyErr_GetHandledException and PyErr_SetHandledException (GH-30531)Irit Katriel2022-04-151-0/+4
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* bpo-45292: [PEP 654] add the ExceptionGroup and BaseExceptionGroup classes ↵Irit Katriel2021-10-221-0/+3
| | | | (GH-28569)
* bpo-45434: Remove useless space in includes (GH-28963)Victor Stinner2021-10-141-1/+1
| | | Micro-optimize spaces!
* bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)Inada Naoki2021-03-291-0/+1
| | | | | | | | | | | See [PEP 597](https://www.python.org/dev/peps/pep-0597/). * Add `-X warn_default_encoding` and `PYTHONWARNDEFAULTENCODING`. * Add EncodingWarning * Add io.text_encoding() * open(), TextIOWrapper() emits EncodingWarning when encoding is omitted and warn_default_encoding is enabled. * _pyio.TextIOWrapper() uses UTF-8 as fallback default encoding used when failed to import locale module. (used during building Python) * bz2, configparser, gzip, lzma, pathlib, tempfile modules use io.text_encoding(). * What's new entry
* bpo-43356: Allow passing a signal number to interrupt_main() (GH-24755)Antoine Pitrou2021-03-111-0/+3
| | | | Also introduce a new C API ``PyErr_SetInterruptEx(int signum)``.
* bpo-43270: Remove private _PyErr_OCCURRED() macro (GH-24579)Victor Stinner2021-02-191-6/+0
| | | | | | | | Remove the private _PyErr_OCCURRED() macro: use the public PyErr_Occurred() function instead. CPython internals must use the internal _PyErr_Occurred(tstate) function instead: it is the most efficient way to check if an exception was raised.
* bpo-36020: Remove snprintf macro in pyerrors.h (GH-20889)Victor Stinner2020-06-151-15/+2
| | | | | | | | | | On Windows, #include "pyerrors.h" no longer defines "snprintf" and "vsnprintf" macros. PyOS_snprintf() and PyOS_vsnprintf() should be used to get portable behavior. Replace snprintf() calls with PyOS_snprintf() and replace vsnprintf() calls with PyOS_vsnprintf().
* bpo-39882: Py_FatalError() logs the function name (GH-18819)Victor Stinner2020-03-061-1/+5
| | | | | | | | | | | | The Py_FatalError() function is replaced with a macro which logs automatically the name of the current function, unless the Py_LIMITED_API macro is defined. Changes: * Add _Py_FatalErrorFunc() function. * Remove the function name from the message of Py_FatalError() calls which included the function name. * Update tests.
* bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)Victor Stinner2020-02-071-2/+2
| | | Replace direct access to PyObject.ob_type with Py_TYPE().
* bpo-37757: Disallow PEP 572 cases that expose implementation details (GH-15131)Nick Coghlan2019-08-251-1/+0
| | | | | | | | | | | | | | | - drop TargetScopeError in favour of raising SyntaxError directly as per the updated PEP 572 - comprehension iteration variables are explicitly local, but named expression targets in comprehensions are nonlocal or global. Raise SyntaxError as specified in PEP 572 - named expression targets in the outermost iterable of a comprehension have an ambiguous target scope. Avoid resolving that question now by raising SyntaxError. PEP 572 originally required this only for cases where the bound name conflicts with the iteration variable in the comprehension, but CPython can't easily restrict the exception to that case (as it doesn't know the target variable names when visiting the outermost iterator expression)
* bpo-36475: Make PyThread_exit_thread with _Py_NO_RETURN (GH-13068)Victor Stinner2019-05-041-11/+0
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* bpo-35224: PEP 572 Implementation (#10497)Emily Morehouse2019-01-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add tokenization of := - Add token to Include/token.h. Add token to documentation in Doc/library/token.rst. - Run `./python Lib/token.py` to regenerate Lib/token.py. - Update Parser/tokenizer.c: add case to handle `:=`. * Add initial usage of := in grammar. * Update Python.asdl to match the grammar updates. Regenerated Include/Python-ast.h and Python/Python-ast.c * Update AST and compiler files in Python/ast.c and Python/compile.c. Basic functionality, this isn't scoped properly * Regenerate Lib/symbol.py using `./python Lib/symbol.py` * Tests - Fix failing tests in test_parser.py due to changes in token numbers for internal representation * Tests - Add simple test for := token * Tests - Add simple tests for named expressions using expr and suite * Tests - Update number of levels for nested expressions to prevent stack overflow * Update symbol table to handle NamedExpr * Update Grammar to allow assignment expressions in if statements. Regenerate Python/graminit.c accordingly using `make regen-grammar` * Tests - Add additional tests for named expressions in RoundtripLegalSyntaxTestCase, based on examples and information directly from PEP 572 Note: failing tests are currently commented out (4 out of 24 tests currently fail) * Tests - Add temporary syntax test failure tests in test_parser.py Note: There is an outstanding TODO for this -- syntax tests need to be moved to a different file (presumably test_syntax.py), but this is covering what needs to be tested at the moment, and it's more convenient to run a single test for the time being * Add support for allowing assignment expressions as function argument annotations. Uncomment tests for these cases because they all pass now! * Tests - Move existing syntax tests out of test_parser.py and into test_named_expressions.py. Refactor syntax tests to use unittest * Add TargetScopeError exception to extend SyntaxError Note: This simply creates the TargetScopeError exception, it is not yet used anywhere * Tests - Update tests per PEP 572 Continue refactoring test suite: The named expression test suite now checks for any invalid cases that throw exceptions (no longer limited to SyntaxErrors), assignment tests to ensure that variables are properly assigned, and scope tests to ensure that variable availability and values are correct Note: - There are still tests that are marked to skip, as they are not yet implemented - There are approximately 300 lines of the PEP that have not yet been addressed, though these may be deferred * Documentation - Small updates to XXX/todo comments - Remove XXX from child description in ast.c - Add comment with number of previously supported nested expressions for 3.7.X in test_parser.py * Fix assert in seq_for_testlist() * Cleanup - Denote "Not implemented -- No keyword args" on failing test case. Fix PEP8 error for blank lines at beginning of test classes in test_parser.py * Tests - Wrap all file opens in `with...as` to ensure files are closed * WIP: handle f(a := 1) * Tests and Cleanup - No longer skips keyword arg test. Keyword arg test now uses a simpler test case and does not rely on an external file. Remove print statements from ast.c * Tests - Refactor last remaining test case that relied on on external file to use a simpler test case without the dependency * Tests - Add better description of remaning skipped tests. Add test checking scope when using assignment expression in a function argument * Tests - Add test for nested comprehension, testing value and scope. Fix variable name in skipped comprehension scope test * Handle restriction of LHS for named expressions - can only assign to LHS of type NAME. Specifically, restrict assignment to tuples This adds an alternative set_context specifically for named expressions, set_namedexpr_context. Thus, context is now set differently for standard assignment versus assignment for named expressions in order to handle restrictions. * Tests - Update negative test case for assigning to lambda to match new error message. Add negative test case for assigning to tuple * Tests - Reorder test cases to group invalid syntax cases and named assignment target errors * Tests - Update test case for named expression in function argument - check that result and variable are set correctly * Todo - Add todo for TargetScopeError based on Guido's comment (https://github.com/python/cpython/commit/2b3acd37bdfc2d35e5094228c6684050d2aa8b0a#r30472562) * Tests - Add named expression tests for assignment operator in function arguments Note: One of two tests are skipped, as function arguments are currently treating an assignment expression inside of parenthesis as one child, which does not properly catch the named expression, nor does it count arguments properly * Add NamedStore to expr_context. Regenerate related code with `make regen-ast` * Add usage of NamedStore to ast_for_named_expr in ast.c. Update occurances of checking for Store to also handle NamedStore where appropriate * Add ste_comprehension to _symtable_entry to track if the namespace is a comprehension. Initialize ste_comprehension to 0. Set set_comprehension to 1 in symtable_handle_comprehension * s/symtable_add_def/symtable_add_def_helper. Add symtable_add_def to handle grabbing st->st_cur and passing it to symtable_add_def_helper. This now allows us to call the original code from symtable_add_def by instead calling symtable_add_def_helper with a different ste. * Refactor symtable_record_directive to take lineno and col_offset as arguments instead of stmt_ty. This allows symtable_record_directive to be used for stmt_ty and expr_ty * Handle elevating scope for named expressions in comprehensions. * Handle error for usage of named expression inside a class block * Tests - No longer skip scope tests. Add additional scope tests * Cleanup - Update error message for named expression within a comprehension within a class. Update comments. Add assert for symtable_extend_namedexpr_scope to validate that we always find at least a ModuleScope if we don't find a Class or FunctionScope * Cleanup - Add missing case for NamedStore in expr_context_name. Remove unused var in set_namedexpr_content * Refactor - Consolidate set_context and set_namedexpr_context to reduce duplicated code. Special cases for named expressions are handled by checking if ctx is NamedStore * Cleanup - Add additional use cases for ast_for_namedexpr in usage comment. Fix multiple blank lines in test_named_expressions * Tests - Remove unnecessary test case. Renumber test case function names * Remove TargetScopeError for now. Will add back if needed * Cleanup - Small comment nit for consistency * Handle positional argument check with named expression * Add TargetScopeError exception definition. Add documentation for TargetScopeError in c-api docs. Throw TargetScopeError instead of SyntaxError when using a named expression in a comprehension within a class scope * Increase stack size for parser by 200. This is a minimal change (approx. 5kb) and should not have an impact on any systems. Update parser test to allow 99 nested levels again * Add TargetScopeError to exception_hierarchy.txt for test_baseexception.py_ * Tests - Major update for named expression tests, both in test_named_expressions and test_parser - Add test for TargetScopeError - Add tests for named expressions in comprehension scope and edge cases - Add tests for named expressions in function arguments (declarations and call sites) - Reorganize tests to group them more logically * Cleanup - Remove unnecessary comment * Cleanup - Comment nitpicks * Explicitly disallow assignment expressions to a name inside parentheses, e.g.: ((x) := 0) - Add check for LHS types to detect a parenthesis then a name (see note) - Add test for this scenario - Update tests for changed error message for named assignment to a tuple (also, see note) Note: This caused issues with the previous error handling for named assignment to a LHS that contained an expression, such as a tuple. Thus, the check for the LHS of a named expression must be changed to be more specific if we wish to maintain the previous error messages * Cleanup - Wrap lines more strictly in test file * Revert "Explicitly disallow assignment expressions to a name inside parentheses, e.g.: ((x) := 0)" This reverts commit f1531400ca7d7a2d148830c8ac703f041740896d. * Add NEWS.d entry * Tests - Fix error in test_pickle.test_exceptions by adding TargetScopeError to list of exceptions * Tests - Update error message tests to reflect improved messaging convention (s/can't/cannot) * Remove cases that cannot be reached in compile.c. Small linting update. * Update Grammar/Tokens to add COLONEQUAL. Regenerate all files * Update TargetScopeError PRE_INIT and POST_INIT, as this was purposefully left out when fixing rebase conflicts * Add NamedStore back and regenerate files * Pass along line number and end col info for named expression * Simplify News entry * Fix compiler warning and explicity mark fallthrough
* bpo-35134: Add Include/cpython/pyerrors.h (GH-10727)Victor Stinner2018-11-261-168/+6
| | | | Move pyerrors.h code surrounded by "#ifndef Py_LIMITED_API" to a new Include/cpython/pyerrors.h header file.
* bpo-35147: Fix _Py_NO_RETURN for GCC (GH-10300)Alexey Izbyshev2018-11-021-3/+3
| | | | | | | | | Use `__GNUC__` instead of non-existing `__GNUC_MAJOR__`. https://bugs.python.org/issue35147
* Define _Py_NO_RETURN for Microsoft C compiler (GH-8606)Victor Stinner2018-08-011-3/+5
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* bpo-33818: PyExceptionClass_Name() will now return "const char *". (GH-7581)Serhiy Storchaka2018-06-151-3/+2
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* Clean up after bpo-33738. (GH-7627)Serhiy Storchaka2018-06-111-2/+1
| | | | | * Add declarations even if they are overridden by macros. * Make the declaration and the definition of PyExceptionClass_Name consistent.
* bpo-33738: Address review comments in GH #7477 (GH-7585)Christian Tismer2018-06-101-2/+2
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* bpo-33738: Fix macros which contradict PEP 384 (GH-7477)Christian Tismer2018-06-091-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During development of the limited API support for PySide, we saw an error in a macro that accessed a type field. This patch fixes the 7 errors in the Python headers. Macros which were not written as capitals were implemented as function. To do the necessary analysis again, a script was included that parses all headers and looks for "->tp_" in serctions which can be reached with active limited API. It is easily possible to call this script as a test. Error listing: ../../Include/objimpl.h:243 #define PyObject_IS_GC(o) (PyType_IS_GC(Py_TYPE(o)) && \ (Py_TYPE(o)->tp_is_gc == NULL || Py_TYPE(o)->tp_is_gc(o))) Action: commented only ../../Include/objimpl.h:362 #define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0) Action: commented only ../../Include/objimpl.h:364 #define PyObject_GET_WEAKREFS_LISTPTR(o) \ ((PyObject **) (((char *) (o)) + Py_TYPE(o)->tp_weaklistoffset)) Action: commented only ../../Include/pyerrors.h:143 #define PyExceptionClass_Name(x) \ ((char *)(((PyTypeObject*)(x))->tp_name)) Action: implemented function ../../Include/abstract.h:593 #define PyIter_Check(obj) \ ((obj)->ob_type->tp_iternext != NULL && \ (obj)->ob_type->tp_iternext != &_PyObject_NextNotImplemented) Action: implemented function ../../Include/abstract.h:713 #define PyIndex_Check(obj) \ ((obj)->ob_type->tp_as_number != NULL && \ (obj)->ob_type->tp_as_number->nb_index != NULL) Action: implemented function ../../Include/abstract.h:924 #define PySequence_ITEM(o, i)\ ( Py_TYPE(o)->tp_as_sequence->sq_item(o, i) ) Action: commented only
* bpo-30697: Fix PyErr_NormalizeException() when no memory (GH-2327)xdegaye2017-10-261-2/+0
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* Move exc state to generator. Fixes bpo-25612 (#1773)Mark Shannon2017-10-221-0/+1
| | | Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
* Delete sigcheck.c since it appears unused (#1723)Segev Finer2017-05-251-1/+1
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* Issue #29058: All stable API extensions added after Python 3.2 are nowSerhiy Storchaka2016-12-271-3/+18
|\ | | | | | | | | available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python version supporting this API.
| * Issue #29058: All stable API extensions added after Python 3.2 are nowSerhiy Storchaka2016-12-271-3/+18
| | | | | | | | | | available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python version supporting this API.
* | Issue #19569: Compiler warnings are now emitted if use most of deprecatedSerhiy Storchaka2016-11-201-5/+5
|/ | | | functions.
* Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raisingSerhiy Storchaka2016-10-211-0/+11
| | | | | | | | new exception with setting current exception as __cause__. _PyErr_FormatFromCause(exception, format, args...) is equivalent to Python raise exception(format % args) from sys.exc_info()[1]
* Issue #15767: Use ModuleNotFoundError.Eric Snow2016-09-071-0/+3
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* Issue #15767: Add ModuleNotFoundError.Eric Snow2016-09-071-0/+1
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* Issue #19235: Add new RecursionError exception. Patch by Georg Brandl.Yury Selivanov2015-07-031-0/+1
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* PEP 0492 -- Coroutines with async and await syntax. Issue #24017.Yury Selivanov2015-05-121-0/+1
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* Issue #22869: Split pythonrun into two modulesNick Coghlan2014-11-201-0/+1
| | | | | | | - interpreter startup and shutdown code moved to a new pylifecycle.c module - Py_OptimizeFlag moved into the new module with the other global flags
* Issue #21715: Extracted shared complicated code in the _io module to newSerhiy Storchaka2014-10-081-1/+3
|\ | | | | | | _PyErr_ChainExceptions() function.
| * Issue #21715: Extracted shared complicated code in the _io module to newSerhiy Storchaka2014-10-081-1/+3
| | | | | | | | _PyErr_ChainExceptions() function.
* | Issue #18711: Add a new `PyErr_FormatV` function, similar to `PyErr_Format` ↵Antoine Pitrou2014-09-301-0/+6
|/ | | | but accepting a `va_list` argument.
* Issue #20517: Removed unnecessary new (short-lived) functions from PyErr.Larry Hastings2014-02-101-25/+0
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* Issue #20517: Functions in the os module that accept two filenamesLarry Hastings2014-02-101-0/+30
| | | | | | now register both filenames in the exception on failure. This required adding new C API functions allowing OSError exceptions to reference two filenames instead of one.
* Issue #19526: Exclude all new API from the stable ABI.Martin v. Löwis2014-01-031-0/+6
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* Issue #16136: Remove VMS support and VMS-related codeChristian Heimes2013-12-211-3/+0
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* Close #17828: better handling of codec errorsNick Coghlan2013-11-131-0/+22
| | | | | | | | - output type errors now redirect users to the type-neutral convenience functions in the codecs module - stateless errors that occur during encoding and decoding will now be automatically wrapped in exceptions that give the name of the codec involved
* Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at ↵Antoine Pitrou2013-10-071-1/+1
|\ | | | | | | least one place so as to avoid regressions.
| * Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at ↵Antoine Pitrou2013-10-071-1/+1
| | | | | | | | least one place so as to avoid regressions.
* | Factor-out the common code for setting a KeyError.Raymond Hettinger2013-09-021-0/+1
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* | Close #11619: The parser and the import machinery do not encode UnicodeVictor Stinner2013-08-261-0/+7
| | | | | | | | filenames anymore on Windows.
* | Issue #15767: back out 8a0ed9f63c6e, finishing the removal ofBrett Cannon2013-07-041-1/+0
| | | | | | | | ModuleNotFoundError.
* | Issue #15767: Revert 3a50025f1900 for ModuleNotFoundErrorBrett Cannon2013-07-041-3/+0
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* | Issue #15767: Touch up ModuleNotFoundError usage by import.Brett Cannon2013-06-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Forgot to raise ModuleNotFoundError when None is found in sys.modules. This led to introducing the C function PyErr_SetImportErrorSubclass() to make setting ModuleNotFoundError easier. Also updated the reference docs to mention ModuleNotFoundError appropriately. Updated the docs for ModuleNotFoundError to mention the None in sys.modules case. Lastly, it was noticed that PyErr_SetImportError() was not setting an exception when returning None in one case. That issue is now fixed.
* | Issue #15767: Introduce ModuleNotFoundError, a subclass ofBrett Cannon2013-06-121-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | ImportError. The exception is raised by import when a module could not be found. Technically this is defined as no viable loader could be found for the specified module. This includes ``from ... import`` statements so that the module usage is consistent for all situations where import couldn't find what was requested. This should allow for the common idiom of:: try: import something except ImportError: pass to be updated to using ModuleNotFoundError and not accidentally mask ImportError messages that should propagate (e.g. issues with a loader). This work was driven by the fact that the ``from ... import`` statement needed to be able to tell the difference between an ImportError that simply couldn't find a module (and thus silence the exception so that ceval can raise it) and an ImportError that represented an actual problem.
* use char instead of int to please T_BOOL (closes #15597)Benjamin Peterson2012-08-091-1/+1
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* Issue #13783: the PEP 380 implementation no longer expands the public C APINick Coghlan2012-06-171-3/+0
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