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* bpo-27129: Update magic numbers and bootstrapping for GH-25069 (GH-25172)Dennis Sweeney2021-04-041-1/+1
| | | | | | | * Update magic numbers and bootstrapping for GH-25069 * add blurb Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-43672: raise ImportWarning when calling find_loader() (GH-25119)Brett Cannon2021-04-021-1/+4
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* bpo-27129: Use instruction offsets, not byte offsets, in bytecode and ↵Mark Shannon2021-04-011-0/+1
| | | | | | | internally. (GH-25069) * Use instruction offset, rather than bytecode offset. Streamlines interpreter dispatch a bit, and removes most EXTENDED_ARGs for jumps. * Change some uses of PyCode_Addr2Line to PyFrame_GetLineNumber
* bpo-42134: Raise ImportWarning when calling find_module() in the import ↵Brett Cannon2021-03-301-0/+3
| | | | system (GH-25044)
* bpo-42136: Deprecate module_repr() as found in importlib (GH-25022)Brett Cannon2021-03-261-0/+2
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* bpo-42129: Add support for resources in namespaces (GH-24670)Jason R. Coombs2021-03-041-0/+4
| | | | | * Unify behavior in ResourceReaderDefaultsTests and align with the behavior found in importlib_resources. * Equip NamespaceLoader with a NamespaceReader. * Apply changes from importlib_resources 5.0.4
* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-261-1/+2
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-42246: Make sure that `f_lasti`, and thus `f_lineno`, is set correctly ↵Mark Shannon2020-12-171-1/+2
| | | | | | | | | after raising or reraising an exception (GH-23803) * Ensure that f_lasti is set correctly after an exception is raised to conform to PEP 626. * Update importlib * Add NEWS.
* bpo-26131: Deprecate usage of load_module() (GH-23469)Brett Cannon2020-12-041-2/+4
| | | Raise an ImportWarning when the import system falls back on load_module(). As for implementations of load_module(), raise a DeprecationWarning.
* bpo-42202: Store func annotations as a tuple (GH-23316)Yurii Karabas2020-11-251-1/+2
| | | | | | | | | | | | | Reduce memory footprint and improve performance of loading modules having many func annotations. >>> sys.getsizeof({"a":"int","b":"int","return":"int"}) 232 >>> sys.getsizeof(("a","int","b","int","return","int")) 88 The tuple is converted into dict on the fly when `func.__annotations__` is accessed first. Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Inada Naoki <songofacandy@gmail.com>
* bpo-42403: Use @staticmethod in importlib (GH-23395)Victor Stinner2020-11-201-10/+10
| | | | | | | | | | | | | Use @staticmethod on methods using @classmethod but don't use their cls parameter on the following classes: * BuiltinImporter * FrozenImporter * WindowsRegistryFinder * PathFinder Leave methods using @_requires_builtin or @_requires_frozen unchanged, since this decorator requires the wrapped method to have an extra parameter (cls or self).
* bpo-42403: Simplify importlib external bootstrap (GH-23397)Victor Stinner2020-11-191-64/+47
| | | | | | | Simplify the importlib external bootstrap code: importlib._bootstrap_external now uses regular imports to import builtin modules. When it is imported, the builtin __import__() function is already fully working and so can be used to import builtin modules like sys.
* Bump magic number. (GH-23245)Mark Shannon2020-11-121-1/+2
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* bpo-38605: bump the magic number for 'annotations' future (#22630)Batuhan Taskaya2020-10-101-1/+2
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* bpo-39791 native hooks for importlib.resources.files (GH-20576)Jason R. Coombs2020-06-081-24/+2
| | | | | | | | | | | | | | | | | | | | | | | | | * Provide native .files support on SourceFileLoader. * Add native importlib.resources.files() support to zipimporter. Remove fallback support. * make regen-all * 📜🤖 Added by blurb_it. * Move 'files' into the ResourceReader so it can carry the relevant module name context. * Create 'importlib.readers' module and add FileReader to it. * Add zip reader and rely on it for a TraversableResources object on zipimporter. * Remove TraversableAdapter, no longer needed. * Update blurb. * Replace backslashes with forward slashes. * Incorporate changes from importlib_metadata 2.0, finalizing the interface for extension via get_resource_reader. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-40050: Fix importlib._bootstrap_external (GH-19135)Victor Stinner2020-03-241-21/+13
| | | | | | Remove two unused imports: _thread and _weakref. Avoid creating a new winreg builtin module if it's already available in sys.modules. The winreg module is now stored as "winreg" rather than "_winreg".
* bpo-38691: importlib ignores PYTHONCASEOK if -E is used (GH-18627)idomic2020-03-091-2/+2
| | | | | The importlib module now ignores the PYTHONCASEOK environment variable when the -E or -I command line options are being used.
* Revert "bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags ↵Victor Stinner2020-02-191-1/+1
| | | | | passed (#18314)" (GH-18553) This reverts commit d83b6600b25487e4ebffd7949d0f478de9538875.
* bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags passed ↵idomic2020-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | (#18314) * Hard reset + cherry piciking the changes. * 📜🤖 Added by blurb_it. * Added @vstinner News * Update Misc/NEWS.d/next/Library/2020-02-11-13-01-38.bpo-38691.oND8Sk.rst Co-Authored-By: Victor Stinner <vstinner@python.org> * Hard reset to master * Hard reset to master + latest changes Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-39320: Handle unpacking of **values in compiler (GH-18141)Mark Shannon2020-01-271-1/+2
| | | | | | | | | | | | | * Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking. * Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused. * Update magic number for ** unpacking opcodes. * Update dis.rst to incorporate new bytecodes. * Add blurb entry.
* bpo-39320: Handle unpacking of *values in compiler (GH-17984)Mark Shannon2020-01-231-1/+3
| | | | | | | | * Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions. * Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused. * Update magic number and dis.rst for new bytecodes.
* bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)Mark Shannon2020-01-141-1/+2
| | | | | | | | Break up COMPARE_OP into four logically distinct opcodes: * COMPARE_OP for rich comparisons * IS_OP for 'is' and 'is not' tests * CONTAINS_OP for 'in' and 'is not' tests * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
* Produce cleaner bytecode for 'with' and 'async with' by generating separate ↵Mark Shannon2019-11-211-1/+3
| | | | | | code for normal and exceptional paths. (#6641) Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication. Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
* bpo-38121: Sync importlib.metadata with 0.22 backport (GH-15993)Jason R. Coombs2019-09-121-49/+3
| | | | | | * bpo-38121: Sync importlib.metadata with 0.22 backport * 📜🤖 Added by blurb_it.
* bpo-38086: Sync importlib.metadata with importlib_metadata 0.21. (GH-15840)Jason R. Coombs2019-09-101-10/+8
| | | https://gitlab.com/python-devs/importlib_metadata/-/tags/0.21
* bpo-34880: Add the LOAD_ASSERTION_ERROR opcode. (GH-15073)Zackery Spytz2019-08-251-1/+2
| | | | Fix assert statement misbehavior if AssertionError is shadowed.
* bpo-37830: Fix compilation of break and continue in finally. (GH-15320)Serhiy Storchaka2019-08-241-1/+2
| | | | | | Fix compilation of "break" and "continue" in the "finally" block when the corresponding "try" block contains "return" with a non-constant value.
* bpo-37697: Sync with importlib_metadata 0.19 (#14993)Jason R. Coombs2019-07-281-10/+19
| | | | | | | | * bpo-37697: Sync with importlib_metadata 0.19 * Run make regen-importlib * 📜🤖 Added by blurb_it.
* Fix typos in docs, comments and test assert messages (#14872)Min ho Kim2019-07-211-1/+1
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* bpo-37593: Swap the positions of posonlyargs and args in the constructor of ↵Pablo Galindo2019-07-141-1/+3
| | | | | ast.parameters nodes (GH-14778) https://bugs.python.org/issue37593
* bpo-35224: Bump the pyc magic number by 1 instead of by 10 in last ↵Pablo Galindo2019-06-231-2/+2
| | | | modification (GH-14320)
* bpo-35224: Bump the pyc magic number after the change in MAP_ADD (GH-14313)Pablo Galindo2019-06-221-1/+3
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* bpo-34632: Add importlib.metadata (GH-12547)Jason R. Coombs2019-05-241-0/+52
| | | Add importlib.metadata module as forward port of the standalone importlib_metadata.
* bpo-36842: Implement PEP 578 (GH-12613)Steve Dower2019-05-231-2/+6
| | | Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
* bpo-36540: PEP 570 -- Implementation (GH-12701)Pablo Galindo2019-04-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit contains the implementation of PEP570: Python positional-only parameters. * Update Grammar/Grammar with new typedarglist and varargslist * Regenerate grammar files * Update and regenerate AST related files * Update code object * Update marshal.c * Update compiler and symtable * Regenerate importlib files * Update callable objects * Implement positional-only args logic in ceval.c * Regenerate frozen data * Update standard library to account for positional-only args * Add test file for positional-only args * Update other test files to account for positional-only args * Add News entry * Update inspect module and related tests
* bpo-35843: Implement __getitem__ for _NamespacePath (GH-11690)Anthony Sottile2019-03-081-0/+3
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* bpo-35024: Remove redundant and possibly incorrect verbose message after ↵Quentin Agren2018-10-261-1/+0
| | | | | | | | | writing '.pyc' (GH-9998) Since `SourceFileLoader.set_data()` catches exceptions raised by `_write_atomic()` and logs an informative message consequently, always logging successful outcome in 'SourceLoader.get_code()' seems redundant. https://bugs.python.org/issue35024
* importlib: Fix typo in SourceLoader.path_stats docstring (GH-10052)Quentin2018-10-251-3/+4
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* bpo-25711: Rewrite zipimport in pure Python. (GH-6809)Serhiy Storchaka2018-09-181-10/+16
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* bpo-33499: Add PYTHONPYCACHEPREFIX env var for alt bytecode cache location. ↵Carl Meyer2018-06-161-10/+52
| | | | | | | | | | | | | | | (GH-6834) In some development setups it is inconvenient or impossible to write bytecode caches to the code tree, but the bytecode caches are still useful. The PYTHONPYCACHEPREFIX environment variable allows specifying an alternate location for cached bytecode files, within which a directory tree mirroring the code tree will be created. This cache tree is then used (for both reading and writing) instead of the local `__pycache__` subdirectory within each source directory. Exposed at runtime as sys.pycache_prefix (defaulting to None), and can be set from the CLI as "-X pycache_prefix=path". Patch by Carl Meyer.
* bpo-32911: Add the historical note about the magic number. (GH-7273)Serhiy Storchaka2018-05-311-0/+2
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* bpo-33169: Remove values of `None` from sys.path_importer_cache when ↵Brett Cannon2018-04-061-2/+4
| | | | | invalidating caches (GH-6402) An entry of None in sys.path_importer_cache represents a negative/missing finder for a path, so clearing it out makes sense.
* bpo-33041: Rework compiling an "async for" loop. (#6142)Serhiy Storchaka2018-03-231-1/+2
| | | | | | | | * Added new opcode END_ASYNC_FOR. * Setting global StopAsyncIteration no longer breaks "async for" loops. * Jumping into an "async for" loop is now disabled. * Jumping out of an "async for" loop no longer corrupts the stack. * Simplify the compiler.
* bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter ↵Serhiy Storchaka2018-02-221-1/+2
| | | | | | | | | to compiler. (GH-5006) Co-authored-by: Mark Shannon <mark@hotpy.org> Co-authored-by: Antoine Pitrou <antoine@python.org>
* bpo-32838: Fix Python versions in the table of magic numbers. (#5658)Serhiy Storchaka2018-02-221-32/+35
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* bpo-32303 - Consistency fixes for namespace loaders (#5481)Barry Warsaw2018-02-021-3/+3
| | | | | | | * Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages. * Make sure ``__spec__.origin` matches ``__file__`` for namespace packages. https://bugs.python.org/issue32303 https://bugs.python.org/issue32305
* bpo-32550. Remove the STORE_ANNOTATION bytecode. (GH-5181)Mark Shannon2018-01-301-1/+2
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* Implement the get_resource_reader() API for file system imports (#5168)Barry Warsaw2018-01-151-6/+32
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* closes bpo-31650: PEP 552 (Deterministic pycs) implementation (#4575)Benjamin Peterson2017-12-091-55/+142
| | | | | | | | | | | | | | | | | | | | | | | | | Python now supports checking bytecode cache up-to-dateness with a hash of the source contents rather than volatile source metadata. See the PEP for details. While a fairly straightforward idea, quite a lot of code had to be modified due to the pervasiveness of pyc implementation details in the codebase. Changes in this commit include: - The core changes to importlib to understand how to read, validate, and regenerate hash-based pycs. - Support for generating hash-based pycs in py_compile and compileall. - Modifications to our siphash implementation to support passing a custom key. We then expose it to importlib through _imp. - Updates to all places in the interpreter, standard library, and tests that manually generate or parse pyc files to grok the new format. - Support in the interpreter command line code for long options like --check-hash-based-pycs. - Tests and documentation for all of the above.
* bpo-31709: Update importlib magic (#3906)Yury Selivanov2017-10-061-1/+2
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