Preserve main 8d27253 and existing migration work without rewriting history. The resulting source tree exactly matches previously tested PR merge de5bb1b979. No Lib files change in this merge.
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Use the existing f-string body unparser for template interpolation format specs, while preserving the outer interpolation source text. Add compile-only Python annotation-constant coverage.
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Restrict mappingproxy ordering, use final codec registry normalization, and prefer index conversion before float conversion for sleep. Retain universal Python assertions and import the matching final codec/time canonical test hunks plus the non-ASCII codec-name deprecation warning.
Upstream source: CPython d220409a13b77de7a6c30abe16ea90db01528edc. The existing codec normalization implementation and bytecode contract remain unchanged.
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Preserve newly merged Python 3.14 compatibility work before applying the three required final-3.15 contract adjustments exposed by merge CI.
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Match the Python 3.14 wrapper type flag and enable the existing guarded method-call fast path. Keep the partial vectorcall changes separate.
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Only lazy aliases may obtain their module from the evaluation function. Eager aliases without a caller __name__ must not inspect their stored value.
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Keep the existing conversion and initialization path while binding format as positional-or-keyword, matching Python 3.14.
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Preserve CPython signed nanosecond conversion precedence for reentrant and nonblocking acquisition, without changing the platform timeout maximum.
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Preserve the wrapper-pickle regressions merged into main while refreshing the independent length checks.
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* Track live entries in reverse dictionary iterators
Extract the Python 3.14-compatible remaining-count and same-size storage handling from #8954. Preserve the older deferred exhaustion and extra-yield contract, using explicit wrapping arithmetic rather than the Python 3.15 extra-yield error and cursor clamp. Cover deleted-slot hints and mutation after the last yield in the existing Python snippet.
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* Enable the repaired reverse-dict restoration regression
The patched native interpreter unexpectedly passes the existing reverse-dict clear/restore test. Remove only its obsolete expected-failure decorator, preserving the canonical assertions and all other markers.
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* Preserve reverse iterator invalidation on atomic relocation
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Extract the startup import_site guard from #8954. Preserve existing logging and comments, and cover the missing sys.modules behavior under -S in the existing sys snippet.
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Extract the Python 3.14-compatible descriptor slot dispatch from #8954. Call the raw type attribute with descriptor, instance and owner, preserving ownership and recursion handling. Extend the existing Python snippet for staticmethod, classmethod, callable-object and ordinary __get__ replacements.
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* Preserve reflected addition for native sequence subclasses
Extract the Python 3.14-compatible sequence-add slot distinction from #8954 without its unconditional numeric-slot clearing. Preserve stateful duplicate-slot behavior, exact descriptor identity, inherited reflected priority and a stable wrapper function address. Extend the existing addition snippet only for the uncovered inherited-native and slot-update cases.
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* Use stored MRO for sequence descriptor ownership
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Extract the Python 3.14-compatible signed timestamp conversion from #8954, preserving floor rounding, float-or-index argument rules and signed divmod remainders. Reuse the existing Windows file-time helper rather than the mega patch range restriction, and keep the 3.14 argument diagnostics. Add three concise parser regressions to the existing os snippet without native filesystem range assumptions.
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Extract the Python 3.14-compatible timeout validation order from #8954. Share validation with Lock and run it before increasing the RLock recursion count. Keep canonical general-lock coverage and add only owned-lock validation regressions to the existing thread snippet.
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Extract the Python 3.14-compatible lookup diagnostic fix from #8954 while retaining the existing registry normalization. Cover original error spelling and normalized search-hook names in the existing codec snippet.
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Extract the independent Python 3.14-compatible constructor fix from #8954. An explicit name replaces __name__ while __qualname__ remains the code qualified name. Add a focused regression to the existing types snippet.
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Extract the Python 3.14-compatible annotation result check from #8954 without its Python 3.15 diagnostics. Preserve the returned dict subclass and cached identity, and cover the behavior in the existing module snippet.
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Extract the Python 3.14-compatible ordering fix from #8954. An existing Warning instance determines its own category, regardless of the category argument. Keep canonical invalid-category coverage and add only the missing instance case to the existing warnings snippet.
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Extract attrgetter, itemgetter and methodcaller GC traversal from #8954. Add four bounded reference-cycle cases to the existing operator snippet, including a non-dotted str subclass retained by attrgetter.
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Extract the Python 3.14-compatible solid-base check from #8954. Prefix member cells contribute to instance layout even though they do not change basicsize. Include member_count in shape comparison while preserving all native layout safeguards, and cover conflicting and compatible bases in the existing type snippet.
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Extract the Python 3.14 comparison contract from #8954 without its 3.15 ordering restrictions or defensive copies. Return the wrapped mapping comparison result without truth conversion. Cover all six direct and reflected operations in the existing mappingproxy snippet.
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Extract wrapper descriptor reduction from #8954 for Python 3.14. Reduce to getattr on the defining class and cover direct reduction plus one roundtrip in the existing pickle snippet. Preserve canonical expected failures for unrelated staticmethod descriptor behavior.
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Extract the Python 3.14-compatible view representation from #8954. Snapshot view elements before invoking their repr methods, preserve recursion handling, and cover each view in the existing collections snippet. Leave migration-specific mapping changes out.
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Track consumed positional arguments, including star width and precision, and preserve mapping key representations in decimal conversion diagnostics.
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FILETIME reports historical DST as unknown, so calculate the actual offset rather than selecting standard-time bias.
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Reject retired missing-field and arbitrary-keyword forms while preserving defaults and explicit placeholders. Sync only matching final CPython constructor test hunks.
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Use exact sequence-type guards and preserve generic fallback diagnostics. Validate both cold and warmed expressions without implementation-specific assertions. Reject stale CPython source checkouts and cross-version library caches.
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Preserve reverse multiplication syntax and native exact overflow diagnostics. Accept the two source-proven CPython 3.15 specialization messages only in affected reverse str/bytes/tuple cases. Use an actually out-of-range Windows datetime errno fixture. Remove the sysconfig check_home argument at its existing canonical 3.15 removal test boundary.
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Preserve existing coverage while following verified final behavior for script metadata, builtin signatures and loading, AST fixture construction, memoryview diagnostics, mmap search bounds, and struct format errors. The unchanged final comparator exposes the earlier expectations; focused native baseline failures establish the required implementation changes.
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Update active version and comparison configuration to Python 3.15.0. Preserve the alpha implementation status, actual bytecode format, and existing libraries pending separate migration. Align generated library-upgrade workflow pins without changing permissions or actions.
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* Support compile module context across AST warning paths
Add Python 3.15 compile(module=...) warning filtering. Move format-spec diagnostics to a fallible, literal-aware AST boundary; preserve nested literal warnings while excluding raw text and comments, map function-type fragments to source locations, and suppress duplicate type-comment emissions with per-call tracking.
Keep unrelated legacy warning-detection and exact diagnostic metadata gaps documented by differential probes. Add focused flag, source-location, exception, reentrancy, filtering and literal-boundary regression coverage.
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* Adapt compile module context to the current parser APIs
Convert the single-mode multiple statements error into the generic
parse error type, and iterate f-string parts through FStringPartRef.
Assisted-by: Claude Code:claude-opus-5-5
---------
Co-authored-by: Jeong YunWon <jeong@youknowone.org>
* Reject unsupported native keywords before argument binding
Add explicit keyword dispatch metadata independently of inferred Rust
calling flags. Reject nonempty keywords before binding and conversion,
while preserving descriptor self checks and keyword-capable calls.
Annotate 31 builtins and list.append/list.clear, derive C-API policies
from ml_flags, and group dynamic registration metadata in MethodDefSpec.
Add regression coverage and remove the id doctest expected-failure marker.
Validation: workspace and C-API tests/clippy, VM without doc, keyword
regressions, and test_call/test_extcall/test_builtin/test_list passed.
The full snippet suite had 475 passes and 7 failures: six CPython-side
expectation mismatches and one missing optional SQLite module.
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* Infer native keyword dispatch from argument metadata
Replace no_keywords annotations with registration-time inference from
FromArgs::PARAMS, including nested parameter metadata. Forward arguments
with keyword-capable parameters to the binder, preserving min/max body
validation and descriptor self checks.
Add regressions for raw arguments, keyword argument structs, and list.sort.
Tested: C-API tests, workspace and C-API Clippy, VM without doc, both keyword
regression snippets, and test_call/test_extcall/test_builtin/test_list.
Workspace tests reported eight _opcode snapshot failures. The full snippet
suite reported 477 passes and seven failures: six CPython-side failures
and one RustPython failure due to the missing optional SQLite module.
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* Simplify native function registration metadata
Reuse SimpleItemMeta for pyfunction attributes and remove FunctionItemMeta.
Remove MethodDefSpec and restore the original new_method_def arguments
with an additional keyword_dispatch parameter, updating its callers.
Consolidate keyword dispatch regressions in syntax_function_args.py,
preserving their assertions and placing them before builtin shadowing.
Validation: workspace and C-API tests/clippy, VM without doc, the combined
snippet, and test_extcall/test_builtin/test_list/test_call passed.
The full snippet suite reported 477 passes and seven existing failures:
six CPython-side failures and one missing optional SQLite module.
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* Reject native keywords by calling convention flags
Remove `KeywordDispatch`, the `keyword_dispatch` field of `PyMethodDef`,
`PyMethodDef::with_keyword_dispatch`, `function::keyword_dispatch` and
the derive macros' `keyword_dispatch_tokens`. Native functions and method
descriptors reject nonempty keywords when `flags` lacks `KEYWORDS`, and
report the unqualified name when `flags` contains `VARARGS`.
`Context::new_method_def` takes `(name, f, flags, doc)` again. Add a
snippet for `int.__new__` called with a keyword argument.
Assisted-by: Claude Code:claude-opus-5-5
---------
Co-authored-by: Jeong YunWon <jeong@youknowone.org>
* Cover Windows time conversion error classes
Require OSError with EINVAL for representable timestamps rejected by the Windows C runtime, while preserving OverflowError for float(2**63). This initial regression-only commit intentionally exposes the current Windows error mapping before the implementation follows.
AI assistance covered source comparison, regression design, and automated Linux baseline/reference controls. Native Windows results are pending. No human validation is claimed.
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* Record native Windows time conversion outcomes
The first hosted regression run failed on CPython 3.14.7 as well as RustPython because a presumed-invalid CRT timestamp succeeded. Add bounded diagnostics before the unchanged assertions to capture full version/build metadata and every conversion result, including negative half-day controls. No implementation or canonical test changes are included.
The existing time snippet still passes the repository pytest runner on Linux CPython 3.14.7 and the current RustPython baseline. Native diagnostic results remain pending.
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* Use the observed UCRT rejection boundary in time regression
Hosted Windows diagnostics show that CPython 3.14.7 and RustPython both accept gmtime(-1) and gmtime(-43200), while -86400 is rejected by all three converters. Correct only the newly added shared negative test value. CPython raises OSError(errno 22) for every selected rejected value, while the RustPython baseline raises OverflowError. Canonical tests and the recorded diagnostics remain unchanged.
The existing snippet passes both Linux reference and baseline controls. Assisted source investigation and automated verification used no manual validation.
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* Preserve Windows CRT time conversion errors
Return CRT errno failures from the Windows calendar helpers and translate them to Python OSError. Adapt the datetime caller while retaining its Unix behavior. Use an exclusive signed float upper bound so float(2**63) still raises OverflowError before reaching the CRT.
Keep Windows negative-time FILETIME fallback and time64 ABI changes outside this Python 3.14 extraction. Existing datetime local-error coverage is retained and a UTC error control is added for the observed rejected timestamp -86400.
Hosted native diagnostics prove CPython 3.14.7 raises OSError(errno 22) where the baseline raises OverflowError. Windows-GNU host_env check and warnings-denied Clippy pass. Selected canonical datetime and complete time/datetime snippet Linux controls pass, with six existing baseline canonical skips. Fixed native Windows verification remains pending CI.
AI assistance covered source comparison, implementation, regression design, and automated verification. No manual validation is claimed.
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Keep Python disposition values distinct from WASI function-table pointers. Recognize wasi-libc SIG_ERR before updating Python handlers and preserve ignored/default/custom dispositions. Add synchronous signal and rejected-registration regressions to the existing snippet.
AI assistance covered source investigation, implementation, and automated reference/baseline tests. Isolated patched runtime validation is pending. No human validation is claimed.
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* Reject empty quoted POSIX timezone abbreviations
Split the Python 3.14-compatible parser guard from #8954. Cover empty standard and daylight-saving abbreviations and preserve valid quoted names.
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* Keep zoneinfo regression in module snippet
Rename the snippet as requested during review without changing test contents.
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