Integrate remaining Python 3.15 final runtime and libraries by youknowdot · Pull Request #8954 · RustPython/RustPython

youknowdot · 2026-10-03T22:58:53Z

Current main rebase and ctypes follow-up (2026-10-19)

Current source: 4a79418f9ab572e9b130b4b0aa9c4b25dc12ff95, based on main 58b54c4f40c7313e47f4d7d55dbb498c7465ca66. This remains a draft; compatibility is incomplete.

Preserve the landed main fixes, including OrderedDict union handling, integer is_builtin, frozen-path options, instrumented/EXTENDED_ARG and line-jump handling, Placeholder state, the generic updater cleanup (Simplify library updates with explicit generic source blocks #9214) and storage library batch (Update ten storage and developer-tool modules to Python 3.15 #9209). No external Ruff/parser prerequisite is introduced by this rebase.
Keep the deletion-oriented generic updater cleanup; no module-specific dispatch or dedicated preservation flags return.
Integrate the six-file native follow-up also published in Align ctypes call ownership and C error state with Python 3.15 #9218: pending-error preservation around teardown callbacks, clearing before exception constructors, arbitrary-object ctypes __getattr__, and a native storage/unwind invariant. Mega already had separate raised-error storage; that existing behavior is not a newly discovered mega regression. The pre-change PYFUNCTYPE inside-except baseline passed. Non-string getattr errors were the directly observed baseline mismatch.

Validation is selective and source-bound:

The rebased b0be844e baseline passed fresh release and full workspace tests (1,452 passed, 18 ignored), plus the previously reported related Python selections. Those are prior-source results.
Final-source fresh sqlite+CAPI release, normal/-E/-I provenance, 98 canonical monitoring executions (5 skipped), and the unchanged stdlib_sys.py snippet passed. The snippet supplies the EXTENDED_ARG coverage; the canonical suite alone is not claimed to cover it.
Focused PythonAPI observations match pinned CPython; eight existing teardown cases and two unchanged ctypes ABI snippets pass. The canonical ctypes selection executes 31 cases (2 skipped); five modules retain their existing missing _ctypes_test skips locally. These checks do not establish every pending-native-error teardown combination or all-platform ABI parity.
Final affected root/VM tests passed (175 passed, 2 ignored); CAPI tests passed (128 passed, 4 ignored); both workspace and CAPI strict all-target Clippy passed with -D warnings. Source/protected-file audits passed; verified added bytecode caches were preserved separately.
Normal hooks passed. No new source skips, assertion changes, or workflow changes were added.

The historical Periodic collector below recorded 42,743 cases with 17 failures and 180 errors. Successful result collection is not an all-tests-green result. New-head hosted CI is pending; historical evidence below remains attached to its stated source. Existing callback-error reporting, foreign-thread callback entry, errcheck locking and incomplete callback GC traversal limits remain separate.

Historical updater simplification (2026-10-19)

Historical head: 7c14c9449704ffe8ae2414b086ebfdd8d56de20f. This tooling-only follow-up does not rebase the integration branch or change its parser, library compatibility adaptations, native sources or Cargo inputs.

Remove module-specific updater dispatch, dedicated flags and bespoke fixtures, including the support remote-debugging and frame-marker adapters. Use explicit, target-bound reviewed patch data with a small generic exact-fragment operation, existing marker handling, and generic selected-assignment/export copying.
Local fragments must already exist uniquely; canonical anchors must be unique in the untouched input. Validate resulting Python syntax before writing. There is no built-in module registry or compatibility alias for removed flags.
Fresh validation: 249 updater host tests and normal commit hooks passed. Actual updater CLI regeneration reproduced the complete canonical frame test output and the exact support capability-helper fixture byte-for-byte, twice each. These checks perform no live process inspection.
Independent file hashing verified all 4,069 tracked files outside the seven changed tooling paths byte-identical to 05eb3c3f. Previous native and hosted CI results below are historical unchanged-input evidence, not a new native test run. New hosted checks are pending.
The shared generic tooling cleanup is also proposed independently in Simplify library updates with explicit generic source blocks #9214. Whichever lands first, subsequent rebasing should drop identical tooling changes rather than retain the deleted helpers.

Compatibility remains incomplete. The completed historical Periodic data collector recorded 42,743 cases, 17 failures, 180 errors, 4,716 skips and 292 expected failures; its successful exit does not mean all tests passed. That disclosure and prior evidence remain below.

Historical CI repair bundle (`05eb3c3`)

Historical source: 05eb3c3f559b297d1c1830c39da1f19819b519ae, based on main e7e3dfd6ce1374efbb16a90ac5cb7a3599ea54de. This remains a draft with maintainer edits enabled.

The approved pinned update_lib transformation makes test.support detect a missing is_python_process API before using it. Existing API-present behavior and offline remote-debugging functionality remain unchanged; host tests use synthetic modules and perform no live process inspection.
The existing test_frame.TestFrameCApi.test_basic expected-failure marker is narrowed to Windows. Its body is unchanged; prior Linux/macOS hosted unexpected successes establish that those platforms should now count it as a pass. Windows retains its prior marker because the ABI3T export list omits non-Stable PyFrame_GetLocals; no export is added.
The regression-data runner now protects its entry point from multiprocessing child re-entry. Bounded mocked checks prove unchanged normal execution and no repeated suite execution or result deletion on child import. The earlier Periodic PTY hang also occurred on main; whether this repair resolves the complete hosted hang awaits CI.
The independently validated GC ownership test setup fix is included from Isolate GC ownership test from child automatic collection #9196.

Validation on this exact source: standard workspace tests passed (1,451 passed, 18 ignored), configured CAPI tests passed (128 passed, four ignored), and strict all-target workspace/CAPI Clippy passed with -D warnings. Normal full-range hooks passed. Updater host validation passed 310 tests and 402 subtests; the generated library changes preserve all unrelated bytes and guards. Source/dependency/protected-file audits passed after separately preserving newly generated bytecode caches. No fresh local Python CAPI integration suite or live remote-process API probe was run; new hosted three-platform CI supplies that integration evidence.

Normal hosted CI on this exact source completed successfully across all three Python/CAPI platforms and all 22 other jobs. CodSpeed and Lib Dependencies Check also passed. Periodic checks also completed successfully, including coverage, benchmarks and regression-data collection. The regression log records exactly one former PTY hang case, passing, followed by normal completion without suite re-entry. This data-collection job still records compatibility gaps (42,743 cases; 17 failures and 180 errors, alongside skips and expected failures); its successful collection status does not mean every raw case passed. The previous results below describe their historical source, not this repair bundle.

Previous rebase and CI repairs (2026-10-18)

Previous source: 0a84bfc031663069439f195fef3d7d585a55d428, rebased onto main e7e3dfd6ce1374efbb16a90ac5cb7a3599ea54de. Landed ctypes, lazy-import, import-timing, bytes-like XML parsing, set fallback, SemLock and regex changes were reconciled and independently reviewed. Draft status and maintainer edits remain enabled.

This batch fixes the five accelerated ElementTree namespace failures by following CPython's adapter contract, updates complete test_extcall and test_unpack_ex from the pinned CPython 3.15.0 source, and uses the existing mapping-key collector for dict-display updates (including the BrokenKeys diagnostic and key-iteration ordering). The explicitly approved, opt-in update_lib pydoc transform recognizes RustPython source-build stdlib paths while preserving installed layouts, CPython and explicit basedirs. The obsolete unencodable-filename expected-failure marker is removed; its canonical platform guard remains.

Validation on this exact source:

Workspace cargo check (excluding CAPI/WASM/venvlauncher), separate configured CAPI check, strict workspace Clippy and fresh release build passed.
Paired pinned CPython / RustPython full suites passed: test_xml_etree, test_xml_etree_c, test_extcall, test_unpack_ex, test_dict, test_pydoc. Candidate counts were 231, 249, 6, 6, 143 and 118 respectively, with existing platform skips and expected failures retained.
Selected test_import unencodable-filename case and all three import-time/path-config CLI cases passed.
Normal commit and full-range hooks passed; updater host tests passed (296 tests). Source/input/artifact audits passed. Normal bytecode creation was retained for tests needing it; only verified newly generated cache entries were reversibly quarantined and restoration audits passed.

Hosted CI on this exact source has completed. All 22 non-Python jobs passed, including three-platform Rust tests/Clippy, cross-checks, Miri and WASI. The Linux production Python suite passed in full. macOS and Windows production suites now fail only test_external_inspection and test_profiling, both during capability detection because the partial _remote_debugging module lacks is_python_process. The C-API test selection passes on Windows; Linux/macOS fail only because TestFrameCApi.test_basic unexpectedly succeeds. The Windows individual case status is not available in the non-verbose log, so its module success is not claimed as a case pass. The remaining repairs are being reviewed; this is not a CI-green claim. No inspector implementation or new skip was added. Earlier validation below is retained as historical provenance for its named source.

Summary

Remaining Python 3.15 integration, rebased onto canonical main at 3f55cf4af040a053892bec26061a1e472cd49b5f, using official CPython v3.15.0, commit d220409a13b77de7a6c30abe16ea90db01528edc.

This remains a broad integration draft while native changes and canonical library imports are separated into reviewable PRs. The Python-version transition in #8950 is merged. The merged #9127, #9130 and #9131 changes remain owned by main; its jiff-tzdb update is preserved.

Library provenance

Library changes are generated through scripts/update_lib from the pinned final reference, preserving applicable RustPython markers. Remaining unsupported migrations stay deferred; generated opcode metadata retains the current compiler schema.

The CI repair migrates the old IO/OS test families into the 17 canonical final package files using the update script's explicit package-migration path. All 15 existing marker conditions/reasons and three inherited-method overrides are preserved. Generated file hashes still match the tool outputs after hooks and rebase. No manual Lib edits or discovery relaxation were used.

CI repairs

Preserve all 17 compile-only t-string cases and exact assertions; update stale expected whitespace to the verified final CPython output.
Restore bound-method reduction's __name__-before-builtins lookup order.
Accept frozen dictionaries in defaultdict union, and integrate Align OrderedDict views and sync pprint with CPython 3.15 #9134's OrderedDict view inheritance/repr repair while preserving the existing frozen-map changes.
Match final CPython executable/venv base-path lookup and its proven expectations, retaining the four copy/symlink combinations and parent-deletion checks.
Format missing Element.remove errors with left-to-right repr evaluation, preserving repr exceptions and surrogate text.
Expose the final WASI chmod argument/audit/no-syscall contract. Restrict native-only subprocess, threading and TLS snippets through the existing WASI exclusion list; their native assertions remain enabled.

Current validation (canonical CI repair)

Current source: 7735157610a221d5c2be9ed44c66a04a632cd44f, still based on main 3f55cf4af040a053892bec26061a1e472cd49b5f.

This 17-file test-only repair uses scripts/update_lib and the same pinned CPython final source. It synchronizes stale doctest, pickletools, pydoc, IMAP, shared list, opcache and syntax tests. It retires 26 source expected-failure markers corresponding to 33 passing test instances common to all three OS jobs at 1470e0fe, plus three syntax doctest directives verified against the canonical oracle. Existing live guards remain; no new skips or expected failures were added. One old guarded syntax example is absent from upstream's canonical file.

Validation is source-scoped:

Fresh default release build commands passed at the repair checkpoints. Native inputs are unchanged from 1470e0fe; incremental builds produced the same native binary, with separately verified current library sources.
Paired pinned-CPython/candidate suites passed for pickletools, doctest, zipimport_support and imaplib at e2f58c865, and list, userlist and bytes at 7c0cc4e4. Their tested files are unchanged in the current checkpoint.
Paired syntax passed at exact current source 773515761; all six remaining doctest guards were retained. Candidate opcache collected and skipped through its existing canonical CPython-only module guard. Three selected cmd_line cases passed at 7c0cc4e4.
Tests used FORCE_COLOR=1. Pydoc's normal bytecode-writing behavior and cmd_line's normal environment-variable behavior were preserved. Generated child-process caches were hash-recorded and quarantined; final source, dependency and protected-file audits passed.
Normal commit and full-range hooks passed. The updater suite passed 280 tests and 275 subtests before the final marker-only change.

CI is not claimed green. The preceding head's hosted run passed every non-Python job but failed all three Python jobs. The new hosted run is pending. Local canonical pydoc now exposes a real stdlib-path classification failure (test__get_version): native sys._stdlib_dir points to the source library, while canonical sysconfig/pydoc selects the installed-layout directory. That compatibility decision remains pending. Canonical updates for extcall/unpack_ex, which also add mapping-error and unpacking-grammar coverage, remain pending separate scope review. No native diagnostic patch or new expected-failure masking is included here.

Prior native-source validation (latest-main REPL rebase)

Prior native source: 1470e0fe6fec124eb70ce44d83c0ee77e4daf525, based on main 3f55cf4af040a053892bec26061a1e472cd49b5f (including #9163 and #9179).

Main advanced again after the prior push and caused merge conflicts, preventing normal CI from starting on 3f510628cb. This rebase preserves main's REPL, piped-stdin and exit-handling architecture while reconciling the existing mega compiler warning diagnostics and startup/C-API behavior. Independent source review found no remaining conflict blocker. One compile-only integration error, a missing trait import in the newly separated file-execution submodule, was fixed before publication.

Native-source validation at that checkpoint:

Offline locked workspace check passed, excluding the separately checked C API and platform-specific wasm/venv-launcher packages.
Separate offline locked C-API check passed with the existing RustPython PyO3 configuration.
Strict workspace Clippy (-D warnings, same exclusions) and normal full-range hooks passed.
Updated updater tests passed: 280 tests and 275 subtests, with three collection warnings.
No fresh local runtime or aggregate regression-suite pass is claimed. Hosted CI for this new source is pending.

The 18 pyexpat expected-failure-marker removals below are preserved byte-for-byte. No additional skips or expected-failure markers were added.

Prior-base validation and CI diagnosis

Historical marker-only source commit: 3f510628cbd00d179899253faf1581de50da9ed8, based on main 9f6f771965e93d0405bd2ab7958e084f82484f38 (including #9179).

The rebase preserves main's compiler source-location architecture, startup path handling, native lifetime/locking fixes and merged lazy-import/interpolation behavior. Already-merged IO/OS migration and OrderedDict changes are no longer duplicated as separate commits. Conflicting library files were regenerated only through scripts/update_lib from the pinned CPython final source. No new skip/expected-failure markers were added.

On the earlier rebased native source 0d9119bd44bada41db261e465d624f19c820442b (native code was unchanged at marker-only 3f510628cb):

Offline, locked workspace cargo check passed, excluding the separately checked C API and platform-specific wasm/venv-launcher packages.
Separate offline, locked C-API cargo check passed with the existing RustPython PyO3 configuration.
Strict workspace Clippy (-D warnings, same workspace exclusions) passed.
Normal configured full-range hooks passed. Updater tests passed: 275 tests and 267 subtests, with three collection warnings.
No fresh local runtime or aggregate regression-suite pass is claimed for this source. Historical runtime proof below belongs only to its named older commits.

Hosted CI for the rebased native source is not green. All three Python jobs failed; all other jobs completed successfully. All three hosted Clippy jobs, WASI snippets, Miri, WASM demo and completed cross-checks passed. Linux production failures decreased from 30 to 24 test modules; C-API failures remain test_frame and test_monitoring. Compared by failing test descriptions with the original head, the only newly observed failures on both Linux and macOS are the same 18 test_pyexpat unexpected successes: existing expected-failure markers now cover passing tests. The same 18 unexpected successes were confirmed on Windows as well. Follow-up 3f510628cb regenerates the pinned canonical module through update_lib migrate --patches to retire exactly these markers: 12 direct decorators and six marker-only inherited-method wrappers. All test bodies, assertions, guards and other markers are unchanged. The generated output was verified byte-for-byte against removing only the selected markers. Normal hooks and the 275-test/267-subtest updater suite passed again. Normal hosted CI for that marker-only follow-up was blocked by the subsequent main merge conflict; the latest-main rebase above resolves it. No CI-green claim is made. Other failures remain tracked rather than hidden by new markers. Passing bounded checks do not establish full compatibility.

Historical validation before this rebase

Historical source commit: f32c093339c3fb501c559b4f4f8c05c806f8845c. The following results are retained as provenance, not proof of the current source.

A fresh matching release CLI build passed with no default features and threading,stdlib,stdio,importlib,host_env; its embedded revision is f32c09333. Strict stdlib all-target Clippy (-D warnings) and all 20 static package-migration tooling tests passed.

On that exact binary, with verified library origins and optimization disabled, the approved bounded checks all passed: bound-method exception ordering; discovery of 489 unique test modules including the 12 IO/OS children; frozen-map integration and Element.remove repr exception propagation; executable/symlink paths; cyclic and four-combination nested venv cases including parent deletion; and six individually selected OrderedDict view/pprint cases, with zero skips or expected failures. Each ran under its reviewed timeout/memory/process/output limits. The first attempt's Element.remove failure was preserved, fixed, rebuilt, and the complete approved sequence rerun successfully.

At that historical checkpoint, hosted CI was pending. Its eventual failures are the comparison baseline described above.

Already completed on the integrated predecessor source: strict VM all-target Clippy with the C-API feature, wasm32-wasip1 VM compile, and the exact t-string compiler test. WASI compilation reports existing target-specific warnings; no WASI runtime was run. Normal commit hooks passed. Offline configured Zizmor comparison against the previously published workflow has four unchanged low-severity self-repository findings and no new findings; YAML-anchor warnings occur on both inputs.

The IO/OS check only enumerates canonical tests and proves that test modules were not imported. It does not execute the IO/OS suites. Full regression, concurrency/GC stress, and candidate C-API runtime suites were not run locally.

C-API scope

The abi3t-only correction defers the 20 new non-Limited monitoring C exports and their dedicated new test, plus the unneeded legacy PyCFunction_Call addition/test. The latter is historical Stable ABI compatibility, not a non-Stable function. Main's existing tests and Python/internal monitoring fixture path remain. The new Windows PyFrame_GetLocals compatibility exception is removed; main's existing implementation remains.

At the pre-rebase checkpoint, source export names/kinds equalled its then-current main exactly: 555 symbols. The earlier correction at 1984aac7 also passed an actual matching cdylib nm comparison; that compiled-artifact result is scoped to that earlier build. The Windows definition has 514 generic Stable ABI symbols, including six already-main buffer APIs missing from the stale list. The generator uses the generic Stable ABI manifest: these are scoped no-expansion checks, not full abi3t certification or Windows PE runtime validation.

Existing native config_get corrections add no C exports: live write_bytecode observes sys.dont_write_bytecode, and the context flags return integers. Candidate C-API runtime semantics remain unverified.

Remaining limits

This is not complete Python 3.15 compatibility. Hosted CI, deferred library migrations, full suites and platform-specific behavior still need validation. Bounded cases do not establish general concurrency, GC, XML parser or C-API lifetime safety.

AI assistance

Implementation, source review, test execution and PR preparation were assisted by OpenAI Codex (model version unavailable), for maintainer-requested Python 3.15 upgrade work. Validation reported here is automated; no human-use verification is claimed. Commit trailers disclose the same assistance.

coderabbitai · 2026-10-03T22:59:02Z

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youknowone · 2026-10-03T23:04:45Z

don't add duplicated tests from Lib/test

Aligned this file with the complete snippet already merged in #8947 (43065e7). There is now no snippet diff against current main, and the merged coverage is preserved. The CPython 3.15.0 reference run and commit hooks passed; the mega branch native suite has not been rerun for this test-only alignment.

codspeed · 2026-10-05T03:45:56Z

Merging this PR will not alter performance

✅ 62 untouched benchmarks
⏩ 4 skipped benchmarks¹

_{Comparing youknowdot:cpython-315-mega-integration (4a79418) with main (58b54c4)}

4 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

Split the Python 3.14-compatible empty native dictionary fast path from #8954. Extend the existing JSON snippet with root, nested, sorting, and nonempty subclass regression coverage. Assisted-by: OpenAI Codex:model identifier unavailable

Use the natural logarithm path for both operands, evaluating x first. Preserve large integer bases and raise ZeroDivisionError for base one while retaining noninteger conversion errors. Split the Python 3.14-compatible behavior from #8954 without its additional __index__ fallback or changes to log2 and log10. Assisted-by: OpenAI Codex:model identifier unavailable

github-actions · 2026-10-18T08:26:12Z

📦 Library Dependencies

The following Lib/ modules were modified. Here are their dependencies:

:4: SyntaxWarning: invalid decimal literal
:7: SyntaxWarning: "\z" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\z"? A raw string is also an option.
:10: SyntaxWarning: "\400" is an invalid octal escape sequence. Such sequences will not work in the future. Did you mean "\400"? A raw string is also an option.
:4: SyntaxWarning: invalid decimal literal
:7: SyntaxWarning: "\z" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\z"? A raw string is also an option.
:10: SyntaxWarning: "\400" is an invalid octal escape sequence. Such sequences will not work in the future. Did you mean "\400"? A raw string is also an option.
:4: SyntaxWarning: invalid decimal literal
:7: SyntaxWarning: "\z" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\z"? A raw string is also an option.
:10: SyntaxWarning: "\400" is an invalid octal escape sequence. Such sequences will not work in the future. Did you mean "\400"? A raw string is also an option.
[x] lib: cpython/Lib/symtable.py
[x] test: cpython/Lib/test/test_symtable.py

dependencies:

symtable

dependent tests: (2 tests)

symtable: test_inspect test_symtable

[ ] test: cpython/Lib/test/test_cmd_line.py (TODO: 18)

dependencies:

dependent tests: (no tests depend on cmd_line)

[x] test: cpython/Lib/test/test_dict.py (TODO: 1)
[ ] test: cpython/Lib/test/test_dictcomps.py
[x] test: cpython/Lib/test/test_dictviews.py (TODO: 1)
[ ] test: cpython/Lib/test/test_userdict.py
[x] test: cpython/Lib/test/mapping_tests.py

dependencies:

dependent tests: (no tests depend on dict)

[x] test: cpython/Lib/test/test_exceptions.py (TODO: 1)
[ ] test: cpython/Lib/test/test_baseexception.py
[x] test: cpython/Lib/test/test_except_star.py
[ ] test: cpython/Lib/test/test_exception_group.py
[x] test: cpython/Lib/test/test_exception_hierarchy.py
[x] test: cpython/Lib/test/test_exception_variations.py

dependencies:

dependent tests: (no tests depend on exception)

[x] test: cpython/Lib/test/test_dtrace.py

dependencies:

dependent tests: (no tests depend on dtrace)

[x] lib: cpython/Lib/urllib
[x] test: cpython/Lib/test/test_urllib.py
[x] test: cpython/Lib/test/test_urllib2.py
[x] test: cpython/Lib/test/test_urllib2_localnet.py
[x] test: cpython/Lib/test/test_urllib2net.py
[x] test: cpython/Lib/test/test_urllibnet.py
[x] test: cpython/Lib/test/test_urlparse.py
[x] test: cpython/Lib/test/test_urllib_response.py
[x] test: cpython/Lib/test/test_robotparser.py

dependencies:

urllib

dependent tests: (108 tests)

[x] test: cpython/Lib/test/test_android.py

dependencies:

dependent tests: (no tests depend on android)

[x] lib: cpython/Lib/pickle.py
[ ] lib: cpython/Lib/_compat_pickle.py
[x] test: cpython/Lib/test/picklecommon.py
[ ] test: cpython/Lib/test/test_pickle.py (TODO: 5)
[x] test: cpython/Lib/test/test_picklebuffer.py (TODO: 1)
[ ] test: cpython/Lib/test/test_pickletools.py (TODO: 1)
[x] test: cpython/Lib/test/test_xpickle.py
[x] test: cpython/Lib/test/xpickle_worker.py

dependencies:

pickle (native: _pickle, itertools, sys)
- _compat_pickle
- _compat_pickle
- io (native: _io, _thread, errno, msvcrt, sys)
- argparse, codecs, copyreg, functools, pprint, struct, types

dependent tests: (102 tests)

pickle: test__interpreters test_annotationlib test_argparse test_array test_ast test_asyncio test_bool test_builtin test_bytes test_bz2 test_codecs test_collections test_concurrent_futures test_configparser test_coroutines test_csv test_ctypes test_decimal test_defaultdict test_deque test_descr test_dict test_dictviews test_email test_enum test_enumerate test_exceptions test_external_inspection test_fractions test_functools test_generators test_genericalias test_genericpath test_http_cookies test_importlib test_inspect test_interpreters test_io test_ipaddress test_iter test_itertools test_json test_list test_logging test_lzma test_memoryview test_minidom test_opcache test_operator test_ordered_dict test_os test_pathlib test_pickle test_picklebuffer test_pickletools test_platform test_plistlib test_positional_only_arg test_random test_range test_re test_set test_shelve test_slice test_socket test_statistics test_str test_string test_structseq test_super test_time test_trace test_tuple test_turtle test_type_aliases test_type_params test_types test_typing test_unittest test_urlparse test_uuid test_xml_dom_minicompat test_xml_etree test_xpickle test_zipfile test_zlib test_zoneinfo
- logging: test_asyncio test_concurrent_futures test_hashlib test_pkgutil test_support test_urllib2net
  - asyncio.futures: test_asyncio
  - concurrent.futures._base: test_concurrent_futures
  - http.cookiejar: test_http_cookiejar test_urllib2
  - multiprocessing.util: test_asyncio test_compileall test_concurrent_futures
  - venv: test_venv
- tracemalloc: test_tracemalloc

[x] test: cpython/Lib/test/test_coroutines.py

dependencies:

dependent tests: (9 tests)
- [x] asyncio: test_asyncio test_concurrent_futures test_external_inspection test_inspect test_logging test_os test_pdb test_unittest
- [x] pdb: test_remote_pdb

[x] lib: cpython/Lib/tkinter
[x] test: cpython/Lib/test/test_tkinter
[x] test: cpython/Lib/test/test_ttk
[x] test: cpython/Lib/test/test_ttk_textonly.py
[x] test: cpython/Lib/test/test_tcl.py

dependencies:

tkinter

dependent tests: (7 tests)

tkinter: test_genericalias test_pyrepl test_tcl test_tkinter test_ttk test_ttk_textonly
- idlelib: test_idle

[x] test: cpython/Lib/test/test_format.py

dependencies:

dependent tests: (no tests depend on format)

[x] lib: cpython/Lib/operator.py
[x] test: cpython/Lib/test/test_operator.py

dependencies:

operator

dependent tests: (43 tests)

operator: test_abstract_numbers test_argparse test_array test_bigaddrspace test_bigmem test_binop test_bool test_builtin test_bytes test_collections test_complex test_copy test_ctypes test_dbm_dumb test_decimal test_enumerate test_float test_fractions test_frame test_functools test_heapq test_index test_inspect test_ipaddress test_iter test_iterlen test_itertools test_kqueue test_math test_monitoring test_numeric_tower test_ordered_dict test_plistlib test_richcmp test_set test_slice test_sort test_str test_struct test_sys test_typing test_weakref test_xml_etree

[x] lib: cpython/Lib/curses
[x] test: cpython/Lib/test/test_curses.py
[x] test: cpython/Lib/test/curses_tests.py

dependencies:

curses

dependent tests: (5 tests)

curses: test_curses test_pyrepl
- profiling: test_profiling
  - cProfile: test_cprofile test_pstats

[x] lib: cpython/Lib/uuid.py
[x] test: cpython/Lib/test/test_uuid.py

dependencies:

uuid

dependent tests: (3 tests)

uuid: test_os
- profiling.sampling.jsonl_collector: test_profiling
- wave: test_wave

[ ] test: cpython/Lib/test/test_syntax.py (TODO: 8)

dependencies:

dependent tests: (no tests depend on syntax)

[x] lib: cpython/Lib/profile.py
[x] test: cpython/Lib/test/test_profile.py (TODO: 1)

dependencies:

profile

dependent tests: (1 tests)

profile: test_profile

[x] lib: cpython/Lib/asyncio
[ ] test: cpython/Lib/test/test_asyncio (TODO: 3)

dependencies:

asyncio

dependent tests: (9 tests)

asyncio: test_asyncio test_concurrent_futures test_external_inspection test_inspect test_logging test_os test_pdb test_unittest
- pdb: test_remote_pdb

[x] lib: cpython/Lib/concurrent
[x] test: cpython/Lib/test/test_concurrent_futures (TODO: 1)
[x] test: cpython/Lib/test/test_interpreters
[x] test: cpython/Lib/test/test__interpreters.py
[x] test: cpython/Lib/test/test__interpchannels.py
[x] test: cpython/Lib/test/test_crossinterp.py

dependencies:

concurrent

dependent tests: (20 tests)

concurrent: test__interpchannels test_asyncio test_compileall test_concurrent_futures test_context test_external_inspection test_genericalias test_inspect test_interpreters test_struct test_sys test_threading test_types test_wmi
- asyncio: test_asyncio test_logging test_os test_pdb test_unittest
  - pdb: test_remote_pdb

[x] lib: cpython/Lib/xml
[x] test: cpython/Lib/test/test_xml_etree.py (TODO: 18)
[ ] test: cpython/Lib/test/test_xml_etree_c.py
[x] test: cpython/Lib/test/test_minidom.py (TODO: 2)
[x] test: cpython/Lib/test/test_pulldom.py
[x] test: cpython/Lib/test/test_pyexpat.py (TODO: 31)
[x] test: cpython/Lib/test/test_sax.py (TODO: 25)
[x] test: cpython/Lib/test/test_xml_dom_minicompat.py
[x] test: cpython/Lib/test/test_xml_dom_xmlbuilder.py

dependencies:

xml

dependent tests: (38 tests)

xml: test_doctest test_minidom test_pulldom test_pydoc test_pyexpat test_regrtest test_sax test_typing test_xml test_xml_dom_minicompat test_xml_dom_xmlbuilder test_xml_etree
- plistlib: test_plistlib
  - platform: test__locale test__osx_support test_android test_asyncio test_baseexception test_builtin test_calendar test_cmath test_ctypes test_fcntl test_math test_mimetypes test_os test_platform test_shutil test_socket test_ssl test_strptime test_sysconfig test_time test_tkinter test_winreg test_wsgiref
  - webbrowser: test_webbrowser
- xmlrpc.client: test_xmlrpc

[x] lib: cpython/Lib/bdb.py
[x] test: cpython/Lib/test/test_bdb.py (TODO: 1)

dependencies:

bdb

dependent tests: (3 tests)

bdb: test_bdb test_pdb
- pdb: test_remote_pdb

[x] lib: cpython/Lib/cProfile.py

dependencies:

cProfile

dependent tests: (2 tests)

cProfile: test_cprofile test_pstats

[x] lib: cpython/Lib/pstats.py
[ ] test: cpython/Lib/test/test_pstats.py (TODO: 2)

dependencies:

pstats

dependent tests: (5 tests)

pstats: test_profile test_pstats
- profiling.sampling.pstats_collector: test_profiling
- profiling.tracing: test_profiling
  - cProfile: test_cprofile

[x] test: cpython/Lib/test/test_extcall.py

dependencies:

dependent tests: (no tests depend on extcall)

[x] test: cpython/Lib/test/test_marshal.py (TODO: 3)

dependencies:

dependent tests: (33 tests)

[x] lib: cpython/Lib/ast.py
[x] lib: cpython/Lib/_ast_unparse.py
[x] test: cpython/Lib/test/test_unparse.py
[x] test: cpython/Lib/test/test_type_comments.py

dependencies:

ast

dependent tests: (168 tests)

[x] lib: cpython/Lib/ctypes
[ ] test: cpython/Lib/test/test_ctypes (TODO: 8)
[ ] test: cpython/Lib/test/test_stable_abi_ctypes.py

dependencies:

ctypes

dependent tests: (37 tests)

ctypes: test_android test_buffer test_bytes test_code test_codecs test_ctypes test_genericalias test_ntpath test_os test_ssl test_venv
- platform: test__locale test__osx_support test_asyncio test_baseexception test_builtin test_calendar test_cmath test_fcntl test_math test_mimetypes test_os test_platform test_regrtest test_shutil test_socket test_strptime test_sysconfig test_time test_tkinter test_winreg test_wsgiref
  - profiling.sampling.gecko_collector: test_profiling
  - profiling.sampling.heatmap_collector: test_profiling
  - pydoc: test_enum test_pydoc
- webbrowser: test_webbrowser

[ ] lib: cpython/Lib/test/support
[x] test: cpython/Lib/test/test_support.py (TODO: 1)
[x] test: cpython/Lib/test/test_script_helper.py

dependencies:

support (native: main, _hashlib, _helpers, _imp, _interpchannels, _opcode, _remote_debugging, _testcapi, _testinternalcapi, _testlimitedcapi, _thread, _winapi, asyncio.events, collections.abc, concurrent.interpreters, concurrent.interpreters._crossinterp, ctypes.wintypes, email._header_value_parser, errno, faulthandler, gc, hypothesis, hypothesis.configuration, hypothesis.database, import_helper, importlib.machinery, importlib.util, logging.handlers, marshal, math, msvcrt, os.path, os_helper, pwd, resource, script_helper, select, setuptools, setuptools._distutils, sys, time, unicodedata, unittest.case, unittest.mock, urllib.error, urllib.parse, urllib.request, zlib)
- opcode (native: _opcode, builtins)
- platform (native: _wmi, itertools, sys, vms_lib, winreg)
- sysconfig (native: _sysconfig, _winapi, importlib.machinery, importlib.util, os.path, sys)
- unittest (native: _io, _log, async_case, builtins, case, loader, main, os.path, result, runner, signals, suite, sys, time, unittest.util, util)
- io
- _colorize, _pyrepl, annotationlib, ast, bz2, codecs, collections, compression, contextlib, ctypes, dataclasses, datetime, decimal, dis, enum, functools, getopt, getpass, glob, gzip, importlib, inspect, locale, logging, lzma, multiprocessing, os, pathlib, py_compile, re, selectors, shlex, shutil, signal, smtplib, socket, stat, string, struct, subprocess, tempfile, textwrap, threading, tkinter, tracemalloc, types, venv, warnings, zipfile

dependent tests: (2 tests)

support: test_pathlib test_pyrepl

[x] test: cpython/Lib/test/test_complex.py (TODO: 1)

dependencies:

dependent tests: (no tests depend on complex)

[x] test: cpython/Lib/test/test_str.py (TODO: 3)
[x] test: cpython/Lib/test/test_fstring.py (TODO: 1)
[x] test: cpython/Lib/test/test_string_literals.py

dependencies:

dependent tests: (no tests depend on str)

[x] test: cpython/Lib/test/test_builtin.py (TODO: 2)

dependencies:

dependent tests: (no tests depend on builtin)

[x] lib: cpython/Lib/dbm
[ ] test: cpython/Lib/test/test_dbm.py (TODO: 2)
[x] test: cpython/Lib/test/test_dbm_dumb.py
[x] test: cpython/Lib/test/test_dbm_gnu.py
[x] test: cpython/Lib/test/test_dbm_ndbm.py
[x] test: cpython/Lib/test/test_dbm_sqlite3.py

dependencies:

dbm

dependent tests: (5 tests)

dbm: test_dbm test_dbm_dumb test_dbm_ndbm test_dbm_sqlite3 test_shelve

[x] lib: cpython/Lib/codeop.py
[x] test: cpython/Lib/test/test_codeop.py

dependencies:

codeop

dependent tests: (120 tests)

[x] lib: cpython/Lib/_ios_support.py

dependencies:

_ios_support

dependent tests: (31 tests)
- [ ] platform: test__locale test__osx_support test_android test_asyncio test_baseexception test_builtin test_calendar test_cmath test_ctypes test_fcntl test_math test_mimetypes test_os test_platform test_regrtest test_shutil test_socket test_ssl test_strptime test_sysconfig test_time test_tkinter test_winreg test_wsgiref
- [x] idlelib: test_idle
- [x] profiling.sampling.gecko_collector: test_profiling
- [x] profiling.sampling.heatmap_collector: test_profiling
- [ ] pydoc: test_enum test_pydoc
- [x] uuid: test_os
- [x] webbrowser: test_webbrowser

[x] lib: cpython/Lib/traceback.py
[x] test: cpython/Lib/test/test_traceback.py (TODO: 2)

dependencies:

traceback

dependent tests: (179 tests)

[x] test: cpython/Lib/test/test_external_inspection.py

dependencies:

dependent tests: (no tests depend on external_inspection)

[x] lib: cpython/Lib/turtle.py
[x] lib: cpython/Lib/turtledemo
[x] test: cpython/Lib/test/test_turtle.py

dependencies:

turtle

dependent tests: (no tests depend on turtle)

[x] test: cpython/Lib/test/test_unpack.py
[x] test: cpython/Lib/test/test_unpack_ex.py

dependencies:

dependent tests: (no tests depend on unpack)

[x] lib: cpython/Lib/modulefinder.py
[x] test: cpython/Lib/test/test_modulefinder.py

dependencies:

modulefinder

dependent tests: (2 tests)

modulefinder: test_importlib test_modulefinder

[x] test: cpython/Lib/test/test_remote_pdb.py

dependencies:

dependent tests: (no tests depend on remote_pdb)

[x] test: cpython/Lib/test/test_frame.py (TODO: 2)

dependencies:

dependent tests: (no tests depend on frame)

[ ] lib: cpython/Lib/platform.py
[x] test: cpython/Lib/test/test_platform.py

dependencies:

platform

dependent tests: (35 tests)

platform: test__locale test__osx_support test_android test_asyncio test_baseexception test_builtin test_calendar test_cmath test_ctypes test_fcntl test_math test_mimetypes test_os test_platform test_regrtest test_shutil test_socket test_ssl test_strptime test_sysconfig test_time test_tkinter test_winreg test_wsgiref
- idlelib: test_idle
- profiling.sampling.gecko_collector: test_profiling
- profiling.sampling.heatmap_collector: test_profiling
- pydoc: test_enum test_pydoc
  - pdb: test_pdb test_remote_pdb
  - xmlrpc.server: test_docxmlrpc test_xmlrpc
- uuid: test_os
  - wave: test_wave

[x] lib: cpython/Lib/profiling
[x] test: cpython/Lib/test/test_profiling

dependencies:

profiling

dependent tests: (3 tests)

profiling: test_profiling
- cProfile: test_cprofile test_pstats

[x] test: cpython/Lib/test/test_patma.py

dependencies:

dependent tests: (no tests depend on patma)

[x] test: cpython/Lib/test/test_type_cache.py

dependencies:

dependent tests: (no tests depend on type_cache)

[x] test: cpython/Lib/test/test_monitoring.py (TODO: 2)

dependencies:

dependent tests: (no tests depend on monitoring)

[x] lib: cpython/Lib/pickletools.py
[ ] test: cpython/Lib/test/test_pickletools.py (TODO: 1)

dependencies:

pickletools

dependent tests: (1 tests)

pickletools: test_pickletools

[x] test: cpython/Lib/test/test_class.py (TODO: 2)
[x] test: cpython/Lib/test/test_genericclass.py
[x] test: cpython/Lib/test/test_subclassinit.py

dependencies:

dependent tests: (no tests depend on class)

[x] lib: cpython/Lib/pdb.py
[ ] test: cpython/Lib/test/test_pdb.py (TODO: 30)

dependencies:

pdb

dependent tests: (2 tests)

pdb: test_pdb test_remote_pdb

[x] lib: cpython/Lib/idlelib

dependencies:

idlelib

dependent tests: (1 tests)

idlelib: test_idle

[x] test: cpython/Lib/test/test_cmd_line_script.py (TODO: 1)

dependencies:

dependent tests: (no tests depend on cmd_line_script)

[x] test: cpython/Lib/test/test_grammar.py

dependencies:

dependent tests: (no tests depend on grammar)

[x] test: cpython/Lib/test/test_opcache.py

dependencies:

dependent tests: (no tests depend on opcache)

[x] lib: cpython/Lib/wsgiref
[x] test: cpython/Lib/test/test_wsgiref.py

dependencies:

wsgiref

dependent tests: (1 tests)

wsgiref: test_wsgiref

[x] lib: cpython/Lib/_colorize.py
[x] test: cpython/Lib/test/test__colorize.py

dependencies:

_colorize

dependent tests: (279 tests)

[x] test: cpython/Lib/test/test_positional_only_arg.py

dependencies:

dependent tests: (no tests depend on positional_only_arg)

Legend:

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[x] up-to-date, [ ] outdated

Aggregate exact 7c14c94 tree onto its e7e3dfd base to avoid unavailable obsolete intermediate blobs during rebase. Original commits and validation proofs remain preserved. Assisted-by: OpenAI Codex: model version unavailable

Retain pending C errors around finalizers, weakrefs and Python buffer release. Clear error state before exception constructors and accept arbitrary ctypes module getattr arguments. Assisted-by: OpenAI Codex: model version unavailable

youknowone reviewed Oct 3, 2026

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youknowdot changed the title ~~Prepare Python 3.15 with the rc2 standard library and runtime prerequisites~~ Prepare Python 3.15 with rc3 libraries and native prerequisites Oct 4, 2026

youknowdot force-pushed the cpython-315-mega-integration branch from fb0f7b6 to 85d2fb9 Compare October 4, 2026 12:26

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youknowdot force-pushed the cpython-315-mega-integration branch 6 times, most recently from 0d7489c to e14427a Compare October 8, 2026 10:08

1ndahous3 mentioned this pull request Oct 16, 2026

Prepare interpreter-local runtime state and thread lifecycle for GC isolation #8944

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youknowdot force-pushed the cpython-315-mega-integration branch from f32c093 to 0d9119b Compare October 18, 2026 08:21

youknowdot mentioned this pull request Oct 18, 2026

Align regex, dataclasses and typing with Python 3.15 #9189

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youknowdot force-pushed the cpython-315-mega-integration branch from 3f51062 to 1470e0f Compare October 18, 2026 09:31

This was referenced Oct 18, 2026

Support import timing and cached import diagnostics #9190

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Align filesystem archives and bytecode compilation with Python 3.15 #9191

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Align collections and testing libraries with Python 3.15 #9192

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youknowdot force-pushed the cpython-315-mega-integration branch from 7735157 to 0a84bfc Compare October 18, 2026 15:11

youknowdot added 2 commits October 19, 2026 22:15

youknowdot mentioned this pull request Oct 19, 2026

Align ctypes call ownership and C error state with Python 3.15 #9218

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youknowdot force-pushed the cpython-315-mega-integration branch from 7c14c94 to 4a79418 Compare October 19, 2026 15:17

youknowdot mentioned this pull request Oct 20, 2026

Include name and path in ImportError repr #9247

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Integrate remaining Python 3.15 final runtime and libraries - #8954

Integrate remaining Python 3.15 final runtime and libraries#8954
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Current main rebase and ctypes follow-up (2026-10-19)

Historical updater simplification (2026-10-19)

Historical CI repair bundle (05eb3c3)

Previous rebase and CI repairs (2026-10-18)

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Library provenance

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Prior native-source validation (latest-main REPL rebase)

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C-API scope

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Merging this PR will not alter performance

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📦 Library Dependencies

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youknowdot commented Oct 3, 2026 •

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Historical CI repair bundle (`05eb3c3`)

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