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* bpo-44771: Apply changes from importlib_resources 5.2.1 (GH-27436)Jason R. Coombs2021-07-307-186/+345
| | | | | | | * bpo-44771: Apply changes from importlib_resources@3b24bd6307 * Add blurb * Exclude namespacedata01 from eol conversion.
* bpo-44717: improve AttributeError on circular imports of submodules (GH-27338)Filipe Laíns2021-07-241-2/+13
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* Revert "bpo-44717: improve AttributeError on circular imports of submodules ↵Pablo Galindo Salgado2021-07-241-13/+2
| | | | | (GH-27299)" (GH-27331) This reverts commit 8072a1181dd64135f700b44372fbf7bf91e68072.
* bpo-44717: improve AttributeError on circular imports of submodules (GH-27299)Filipe Laíns2021-07-241-2/+13
| | | | | Signed-off-by: Filipe Laíns <lains@riseup.net> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* bpo-44530: Add co_qualname field to PyCodeObject (GH-26941)Gabriele N. Tornetta2021-07-071-1/+2
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* bpo-43950: Add code.co_positions (PEP 657) (GH-26955)Pablo Galindo2021-07-021-1/+2
| | | | | | | | | | | | | | | This PR is part of PEP 657 and augments the compiler to emit ending line numbers as well as starting and ending columns from the AST into compiled code objects. This allows bytecodes to be correlated to the exact source code ranges that generated them. This information is made available through the following public APIs: * The `co_positions` method on code objects. * The C API function `PyCode_Addr2Location`. Co-authored-by: Batuhan Taskaya <isidentical@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44313: bump up magic (#26983)Batuhan Taskaya2021-07-011-1/+1
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* bpo-44313: generate LOAD_ATTR/CALL_FUNCTION for top-level imported objects ↵Batuhan Taskaya2021-06-301-0/+1
| | | | (GH-26677)
* bpo-44464: Remove special exclusion for flake8 in the deprecation warnings. ↵Jason R. Coombs2021-06-271-9/+1
| | | | | (#26807) Sync with importlib_metadata 4.6.
* bpo-43693: Turn localspluskinds into an object (GH-26749)Guido van Rossum2021-06-211-1/+2
| | | Managing it as a bare pointer to malloc'ed bytes is just too awkward in a few places.
* bpo-38291: DeprecationWarning when importing typing.{io,re} (#26719)Sebastian Rittau2021-06-191-2/+1
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* bpo-43693: Eliminate unused "fast locals". (gh-26587)Eric Snow2021-06-151-1/+2
| | | | | Currently, if an arg value escapes (into the closure for an inner function) we end up allocating two indices in the fast locals even though only one gets used. Additionally, using the lower index would be better in some cases, such as with no-arg `super()`. To address this, we update the compiler to fix the offsets so each variable only gets one "fast local". As a consequence, now some cell offsets are interspersed with the locals (only when an arg escapes to an inner function). https://bugs.python.org/issue43693
* Fix typos in multiple files (GH-26689)Binbin2021-06-131-1/+1
| | | Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-43693: Un-revert commit f3fa63e. (#26609)Eric Snow2021-06-081-1/+2
| | | | | | | | | This was reverted in GH-26596 (commit 6d518bb) due to some bad memory accesses. * Add the MAKE_CELL opcode. (gh-26396) The memory accesses have been fixed. https://bugs.python.org/issue43693
* Revert "bpo-43693: Add the MAKE_CELL opcode and interleave fast locals ↵Pablo Galindo2021-06-081-2/+1
| | | | | offsets. (gh-26396)" (GH-26597) This reverts commit 631f9938b1604d4f893417ec339b9e0fa9196fb1.
* bpo-43693: Add the MAKE_CELL opcode and interleave fast locals offsets. ↵Eric Snow2021-06-071-1/+2
| | | | | | | (gh-26396) This moves logic out of the frame initialization code and into the compiler and eval loop. Doing so simplifies the runtime code and allows us to optimize it better. https://bugs.python.org/issue43693
* bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)Eric Snow2021-06-071-1/+3
| | | | | | | | | | These were reverted in gh-26530 (commit 17c4edc) due to refleaks. * 2c1e258 - Compute deref offsets in compiler (gh-25152) * b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388) This change fixes the refleaks. https://bugs.python.org/issue43693
* bpo-43693: Revert commits 2c1e2583fdc4db6b43d163239ea42b0e8394171f and ↵Pablo Galindo2021-06-041-3/+1
| | | | | | | | | | | | | b2bf2bc1ece673d387341e06c8d3c2bc6e259747 (GH-26530) * Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)" This reverts commit b2bf2bc1ece673d387341e06c8d3c2bc6e259747. * Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)" This reverts commit 2c1e2583fdc4db6b43d163239ea42b0e8394171f. These two commits are breaking the refleak buildbots.
* bpo-43693: Compute deref offsets in compiler (gh-25152)Mark Shannon2021-06-041-1/+2
| | | | | | Merges locals and cells into a single array. Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more https://bugs.python.org/issue43693
* bpo-43693: Add new internal code objects fields: co_fastlocalnames and ↵Eric Snow2021-06-031-1/+2
| | | | | | | | | | | | | | | | | co_fastlocalkinds. (gh-26388) A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs. Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars. At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections. This is something we can easily address in the compiler instead. This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free). These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily). Aside from the (mild) performance impact, there are a number of other benefits: * there's now a clear, direct relationship between locals-plus and variables * code that relies on the locals-plus-to-name mapping is simpler * marshaled code objects are smaller and serialize/de-serialize faster Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs). Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array. It would also allow us to shrink marshaled code objects even further. https://bugs.python.org/issue43693
* bpo-44246: Restore compatibility in entry_points (GH-26468)Jason R. Coombs2021-05-311-1/+102
| | | | | | | * bpo-44246: Entry points performance improvements. From importlib_metadata 4.3.1. * bpo-44246: Sync with importlib_metadata 4.4
* bpo-44246: Entry points performance improvements. (GH-26467)Jason R. Coombs2021-05-311-1/+23
| | | From importlib_metadata 4.3.1.
* bpo-43693: Add _PyCode_New(). (gh-26375)Eric Snow2021-05-271-1/+2
| | | | | This is an internal-only API that helps us manage the many values used to create a code object. https://bugs.python.org/issue43693
* bpo-38693: Prefer f-strings in importlib.resources (importlib_resources ↵Jason R. Coombs2021-05-263-9/+6
| | | | | 5.0.6). (GH-26387) Automerge-Triggered-By: GH:jaraco
* bpo-38693: importlib.metadata f-strings (GH-26383)Jason R. Coombs2021-05-261-5/+4
| | | Automerge-Triggered-By: GH:jaraco
* bpo-44241: Incorporate changes from importlib_metadata 4.1. (#26382)Jason R. Coombs2021-05-263-8/+28
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* bpo-44210: make importlib.metadata._meta.PackageMetadata public (GH-26299)Filipe Laíns2021-05-231-0/+2
| | | | | Signed-off-by: Filipe Laíns <lains@riseup.net> Automerge-Triggered-By: GH:jaraco
* bpo-43643: Sync with python/importlib_resources@c17a610aad. (GH-26284)Jason R. Coombs2021-05-212-1/+3
| | | | * bpo-43643: Sync with python/importlib_resources@c17a610aad. * Sync with python/importlib_resources@89fd5e961a.
* bpo-26110: Add ``CALL_METHOD_KW`` opcode to speedup method calls with ↵Ken Jin2021-05-151-1/+2
| | | | | | | | | keywords (GH-26014) * Add CALL_METHOD_KW * Make CALL_METHOD branchless too since it shares the same code * Place parentheses in STACK_SHRINK
* bpo-40222: "Zero cost" exception handling (GH-25729)Mark Shannon2021-05-071-1/+2
| | | | | | | | "Zero cost" exception handling. * Uses a lookup table to determine how to handle exceptions. * Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements. * Reduces the size of the frame object by about 60%.
* bpo-43926: Cleaner metadata with PEP 566 JSON support. (GH-25565)Jason R. Coombs2021-05-027-23/+200
| | | | | | | | | * bpo-43926: Cleaner metadata with PEP 566 JSON support. * Add blurb * Add versionchanged and versionadded declarations for changes to metadata. * Use descriptor for PEP 566
* bpo-43754: Eliminate bindings for partial pattern matches (GH-25229)Brandt Bucher2021-05-021-1/+2
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* bpo-42739: Don't use sentinels to mark end of line table. (GH-25657)Mark Shannon2021-04-291-1/+2
| | | | | * Add length parameter to PyLineTable_InitAddressRange and doen't use sentinel values at end of table. Makes the line number table more robust. * Update PyCodeAddressRange to match PEP 626.
* bpo-43780: Sync with importlib_metadata 3.10 (GH-25297)Jason R. Coombs2021-04-243-75/+258
| | | | | | | * bpo-43780: Sync with importlib_metadata 3.10. * Add blurb * Apply changes from importlib_metadata 3.10.1.
* bpo-38605: Revert making 'from __future__ import annotations' the default ↵Pablo Galindo2021-04-211-1/+2
| | | | | | (GH-25490) This reverts commits 044a1048ca93d466965afc027b91a5a9eb9ce23c and 1be456ae9d53bb1cba2b24fc86175c282d1c2169, adapting the code to changes that happened after it.
* Correct micro release number and add a couple of asserts. (GH-25224)Mark Shannon2021-04-071-1/+1
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* bpo-43105: Importlib now resolves relative paths when creating module spec ↵Steve Dower2021-04-071-19/+62
| | | | objects from file locations (GH-25121)
* bump the bytecode magic number (GH-25225)Dennis Sweeney2021-04-061-1/+1
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* bpo-42135: Deprecate implementations of find_module() and find_loader() ↵Brett Cannon2021-04-064-7/+37
| | | | (GH-25169)
* bpo-43683: Handle generator entry in bytecode (GH-25138)Mark Shannon2021-04-061-0/+1
| | | | | | * Handle check for sending None to starting generator and coroutine into bytecode. * Document new bytecode and make it fail gracefully if mis-compiled.
* 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-43720: Update import-related stdlib deprecation messages to say they ↵Brett Cannon2021-04-031-3/+6
| | | | will be removed in Python 3.12 (GH-25167)
* 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 Cannon2021-03-302-2/+6
| | | | system (GH-25044)
* bpo-42136: Deprecate module_repr() as found in importlib (GH-25022)Brett Cannon2021-03-263-2/+9
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* bpo-42137: have ModuleType.__repr__ prefer __spec__ over module_repr() ↵Brett Cannon2021-03-241-14/+6
| | | | | (GH-24953) This is to work towards the removal of the use of module_repr() in Python 3.12 (documented as deprecated since 3.4).
* bpo-43428: Improve documentation for importlib.metadata changes. (GH-24858)Jason R. Coombs2021-03-151-2/+18
| | | | | | | * bpo-43428: Sync with importlib_metadata 3.7.3 (16ac3a95) * Add 'versionadded' for importlib.metadata.packages_distributions * Add section in what's new for Python 3.10 highlighting most salient changes and relevant backport.
* bpo-43428: Sync with importlib_metadata 3.7. (GH-24782)Jason R. Coombs2021-03-132-25/+220
| | | | | | | * bpo-43428: Sync with importlib_metadata 3.7.2 (67234b6) * Add blurb * Reformat blurb to create separate paragraphs for each change included.
* bpo-42129: Add support for resources in namespaces (GH-24670)Jason R. Coombs2021-03-046-88/+270
| | | | | * 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
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