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* Add missed `stream` argument (#111775)Alexander Shadchin2024-02-201-1/+1
| | | | | * Add missed `stream` argument * Add news
* ``importlib/_bootstrap.py``: Reduce size of ``_List`` instances (GH-114747)Kirill Podoprigora2024-01-301-1/+1
| | | Reduce size of _List instances
* gh-109653: Improve import time of importlib.metadata / email.utils (#114664)Shantanu2024-01-291-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | My criterion for delayed imports is that they're only worth it if the majority of users of the module would benefit from it, otherwise you're just moving latency around unpredictably. mktime_tz is not used anywhere in the standard library and grep.app indicates it's not got much use in the ecosystem either. Distribution.files is not nearly as widely used as other importlib.metadata APIs, so we defer the csv import. Before: ``` λ hyperfine -w 8 './python -c "import importlib.metadata"' Benchmark 1: ./python -c "import importlib.metadata" Time (mean ± σ): 65.1 ms ± 0.5 ms [User: 55.3 ms, System: 9.8 ms] Range (min … max): 64.4 ms … 66.4 ms 44 runs ``` After: ``` λ hyperfine -w 8 './python -c "import importlib.metadata"' Benchmark 1: ./python -c "import importlib.metadata" Time (mean ± σ): 62.0 ms ± 0.3 ms [User: 52.5 ms, System: 9.6 ms] Range (min … max): 61.3 ms … 62.8 ms 46 runs ``` for about a 3ms saving with warm disk cache, maybe 7-11ms with cold disk cache.
* GH-112354: `END_FOR` instruction to only pop one value. (GH-114247)Mark Shannon2024-01-241-1/+2
| | | | * Compiler emits END_FOR; POP_TOP instead of END_FOR. To support tier 2 side exits in loops.
* gh-114265: move line number propagation before cfg optimization, remove ↵Irit Katriel2024-01-191-1/+2
| | | | guarantee_lineno_for_exits (#114267)
* gh-113238: add Anchor to importlib.resources (#113801)Mike Zimin2024-01-161-0/+2
| | | | Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* gh-107901: synthetic jumps which are not at end of loop no longer check the ↵Irit Katriel2024-01-061-1/+2
| | | | eval breaker (#113721)
* gh-113174: Sync with importlib_metadata 7.0 (#113175)Jason R. Coombs2023-12-214-78/+130
| | | | | | | | | | | | | | | | | | | | | | | * Sync with importlib_metadata 7.0.0 * Add blurb * Update docs to reflect changes. * Link datamodel docs for object.__getitem__ Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> * Add what's new for removed __getattr__ * Link datamodel docs for object.__getitem__ Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> * Add exclamation point, as that seems to be used for other classes. --------- Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* gh-112983: Add the known magic value of 3495 for Python 3.11 bytecode (#112985)wim glenn2023-12-121-0/+1
| | | Add the known magic value of 3495 for Python 3.11 bytecode
* gh-112414: Fix `AttributeError` when calling `repr()` on a namespace package ↵Alex Waygood2023-11-271-2/+8
| | | | imported with a custom loader (#112425)
* gh-111354: Simplify _PyGen_yf by moving some of its work to the compiler and ↵Irit Katriel2023-11-031-1/+2
| | | | frame state (#111648)
* gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 ↵Irit Katriel2023-11-021-1/+2
| | | | (#111459)
* Fix a misspelling of Interpeter -> Interpreter (GH-111040)Nikita Sobolev2023-10-181-1/+1
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* GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300)Brandt Bucher2023-09-131-1/+2
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* gh-109256: allocate opcode IDs for internal opcodes in their own range (#109269)Irit Katriel2023-09-121-1/+2
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* gh-109039: Branch prediction for Tier 2 interpreter (#109038)Guido van Rossum2023-09-111-1/+2
| | | | | | | | | | | This adds a 16-bit inline cache entry to the conditional branch instructions POP_JUMP_IF_{FALSE,TRUE,NONE,NOT_NONE} and their instrumented variants, which is used to keep track of the branch direction. Each time we encounter these instructions we shift the cache entry left by one and set the bottom bit to whether we jumped. Then when it's time to translate such a branch to Tier 2 uops, we use the bit count from the cache entry to decided whether to continue translating the "didn't jump" branch or the "jumped" branch. The counter is initialized to a pattern of alternating ones and zeros to avoid bias. The .pyc file magic number is updated. There's a new test, some fixes for existing tests, and a few miscellaneous cleanups.
* GH-108614: Increase importlib MAGIC for RESUME_CHECK instruction (#109247)Victor Stinner2023-09-111-1/+2
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* GH-106176, GH-104702: Fix reference leak when importing across multiple ↵Brett Cannon2023-08-291-12/+103
| | | | threads (#108497)
* gh-105481: generate op IDs from bytecode.c instead of hard coding them in ↵Irit Katriel2023-08-161-1/+2
| | | | opcode.py (#107971)
* GH-105848: Simplify the arrangement of CALL's stack (GH-107788)Brandt Bucher2023-08-091-1/+2
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* gh-106531: Remove importlib.resources._legacy (#106532)Jason R. Coombs2023-07-142-139/+0
| | | | | | | * gh-106531: Remove importlib.resources._legacy Syncs with importlib_resources 6.0. * Remove documentation for removed functionality.
* GH-106008: Make implicit boolean conversions explicit (GH-106003)Brandt Bucher2023-06-291-1/+2
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* gh-105775: Convert LOAD_CLOSURE to a pseudo-op (#106059)hms2023-06-291-1/+2
| | | | | | This enables super-instruction formation, removal of checks for uninitialized variables, and frees up an instruction.
* gh-105481: generate _specializations and _specialized_instructions from ↵Irit Katriel2023-06-191-1/+2
| | | | bytecodes.c (#105913)
* GH-77273: Better bytecodes for f-strings (GH-6132)Mark Shannon2023-06-141-2/+4
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* Fix magic number (GH-105722)Mark Shannon2023-06-131-3/+2
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* GH-105678: Split MAKE_FUNCTION into MAKE_FUNCTION and SET_FUNCTION_ATTRIBUTE ↵Mark Shannon2023-06-131-1/+3
| | | | (GH-105680)
* gh-104310: Rename the New Function in importlib.util (gh-105255)Eric Snow2023-06-081-5/+21
| | | | | | | | | | | The original name wasn't as clear as it could have been. This change includes the following: * rename the function * change the default value for "disable_check" to False * add clues to the docstring that folks should probably not use the function --------- Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
* gh-105407: Remove unused imports in the stdlib (#105411)Victor Stinner2023-06-062-3/+0
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* GH-105229: Replace some superinstructions with single instruction ↵Mark Shannon2023-06-051-1/+2
| | | | equivalent. (GH-105230)
* GH-104584: Plugin optimizer API (GH-105100)Mark Shannon2023-06-021-2/+3
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* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-161-1/+2
| | | | | | | | | | | | | | This implements PEP 695, Type Parameter Syntax. It adds support for: - Generic functions (def func[T](): ...) - Generic classes (class X[T](): ...) - Type aliases (type X = ...) - New scoping when the new syntax is used within a class body - Compiler and interpreter changes to support the new syntax and scoping rules Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com> Co-authored-by: Eric Traut <eric@traut.com> Co-authored-by: Larry Hastings <larry@hastings.org> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* gh-87729: improve hit rate of LOAD_SUPER_ATTR specialization (#104270)Carl Meyer2023-05-111-1/+2
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* gh-97933: (PEP 709) inline list/dict/set comprehensions (#101441)Carl Meyer2023-05-091-1/+2
| | | | Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-104310: Add importlib.util.allowing_all_extensions() (gh-104311)Eric Snow2023-05-081-0/+37
| | | (I'll be adding docs for this separately.)
* gh-98040: Remove find_loader, find_module and other deprecated APIs (#98059)Barry Warsaw2023-05-034-259/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove deprecated classes from pkgutil * Remove some other PEP 302 obsolescence * Use find_spec instead of load_module * Remove more tests of PEP 302 obsolete APIs * Remove another bunch of tests using obsolete load_modules() * Remove deleted names from __all__ * Remove obsolete footnote * imp is removed * Remove `imp` from generated stdlib names * What's new and blurb * Update zipimport documentation for the removed methods * Fix some Windows tests * Remove any test (or part of a test) that references `find_module()`. * Use assertIsNone() / assertIsNotNone() consistently. * Update Doc/reference/import.rst * We don't need pkgutil._get_spec() any more either * test.test_importlib.fixtures.NullFinder * ...BadLoaderFinder.find_module * ...test_api.InvalidatingNullFinder.find_module * ...test.test_zipimport test of z.find_module * Suppress cross-references to find_loader and find_module * Suppress cross-references to Finder * Suppress cross-references to pkgutil.ImpImporter and pkgutil.ImpLoader --------- Co-authored-by: Oleg Iarygin <oleg@arhadthedev.net> Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
* gh-87729: specialize LOAD_SUPER_ATTR_METHOD (#103809)Carl Meyer2023-04-251-2/+3
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* gh-87729: add LOAD_SUPER_ATTR instruction for faster super() (#103497)Carl Meyer2023-04-241-2/+3
| | | | | This speeds up `super()` (by around 85%, for a simple one-level `super().meth()` microbenchmark) by avoiding allocation of a new single-use `super()` object on each use.
* gh-103661: Apply bugfix from importlib_metadata 6.5.1 and restore test. ↵Jason R. Coombs2023-04-221-12/+14
| | | | (#103681)
* Sync with importlib_metadata 6.5 (GH-103584)Jason R. Coombs2023-04-213-20/+127
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* Remove double space in import error message (#103458)Ned Batchelder2023-04-141-1/+1
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* GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython ↵Mark Shannon2023-04-121-1/+2
| | | | | | | | | | (GH-103083) * The majority of the monitoring code is in instrumentation.c * The new instrumentation bytecodes are in bytecodes.c * legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
* GH-102700: allow built-in modules to be submodules (GH-103162)Brett Cannon2023-04-061-2/+0
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* GH-88691: Shrink the CALL caches (GH-103230)Brandt Bucher2023-04-051-1/+2
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* GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022)Brandt Bucher2023-03-291-1/+3
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* GH-100982: Break up COMPARE_AND_BRANCH (GH-102801)Brandt Bucher2023-03-231-2/+2
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* gh-102859: Remove JUMP_IF_FALSE_OR_POP and JUMP_IF_TRUE_OR_POP (#102870)Irit Katriel2023-03-221-1/+2
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* GH-90997: Shrink the LOAD_GLOBAL caches (#102569)Brandt Bucher2023-03-111-4/+9
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* gh-102515: Remove unused imports in the `Lib/` directory (#102516)Alex Waygood2023-03-081-1/+0
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* gh-97930: Apply changes from importlib_resources 5.12. (GH-102010)Jason R. Coombs2023-02-183-42/+67
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