* Update ten Python library modules to Python 3.15 final
Migrate dependency-ordered linecache, locale, _pydecimal, decimal, random, uuid, wave, _strptime, zipapp and poplib with their canonical tests and WAV fixtures using update_lib.
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* Align dependent datetime and warning tests with Python 3.15 final
Generate complete dependent tests and pure datetime through update_lib from CPython d220409a13b77de7a6c30abe16ea90db01528edc. Preserve the existing tracemalloc expected failure. Pass warning module metadata to WarningMessage, use sys context after stack exhaustion, and identify invalid category classes with the existing qualified-name helper.
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* Target Python 3.15 using the final upstream reference
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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* Adapt essential snippet contracts to Python 3.15 final
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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* Keep final-reference regression paths and remove expired sysconfig argument
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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* Keep README wording unchanged in Python 3.15 transition
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* Match Python 3.15 repetition specialization and keep universal tests
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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* Limit in-place specialization additions to exact sequence repetition
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* Keep subclass regression scoped to repetition dispatch
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* Provision final CPython 3.15 with pinned uv builds
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* Enforce Python 3.15 AST constructor requirements
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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* Keep seeded Python ahead of its Windows DLL directory
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* Keep opcode metadata tied to the implemented bytecode format
The interpreter target and reference tests use Python 3.15.0, but the current Rust opcode enum retains the 3.14 bytecode format. Generate metadata from its matching source rather than importing unsupported instruction families.
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* Align CSV, logarithm and decimal formatting with Python 3.15
Propagate dialect lookup errors except AttributeError, retry integer logarithms after float overflow, and update the decimal conversion diagnostic. Exercise the final reference contracts without implementation-specific branches.
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* Bind the logarithm index result before borrowing its integer
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* Align required canonical test expectations with Python 3.15
Take only demonstrated contract changes from CPython v3.15.0, d220409a13b77de7a6c30abe16ea90db01528edc: removed module __cached__, Struct format exception classes, and decimal-format diagnostic. Preserve unrelated tests and expectations.
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* Track pending frozendict pickle support during the 3.15 transition
Keep the two existing frozendict pickle tests running as expected failures until #8951 supplies the builtin. Unexpected success will signal removal of these temporary markers.
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* Support final Python 3.15 Windows negative timestamps
Use FILETIME for pre-epoch conversions and preserve precise Windows timestamp errors.
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* Derive historical Windows timezone offsets from wall time
FILETIME reports historical DST as unknown, so calculate the actual offset rather than selecting standard-time bias.
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* Identify decimal formatting arguments in Python 3.15 errors
Track consumed positional arguments, including star width and precision, and preserve mapping key representations in decimal conversion diagnostics.
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* Reuse mapping format keys for lookup and error context
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* Borrow mapping diagnostic keys as Python objects
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* Avoid empty components in the reference Python library path
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* Isolate RustPython bytecode caches during the 3.15 transition
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* Sync final Windows timestamp test expectations
Import only the final CPython platform-limit guards and mktime roundtrip expectation required by the existing Windows CI suite.
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* Restore official Python setup for 3.15 final
Use the existing pinned setup-python action now that its official catalog supplies CPython 3.15.0. Remove the temporary standalone provisioning action and its sparse-checkout entry while retaining interpreter outputs and requested versions.
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* Align merged runtime contracts with Python 3.15 final
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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* Limit Windows launcher version check to its interpreter
Exclude only the CPython py.exe version-identity case from RustPython CI. The installed launcher reports its own final version, while RustPython correctly remains alpha. Preserve the other 45 launcher cases and all RustPython version assertions without modifying Lib.
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Co-authored-by: Jeong, YunWon <69878+youknowone@users.noreply.github.com>
- Replace chrono with CRT functions (wcsftime, _gmtime64_s,
_localtime64_s, _mktime64) on Windows for correct behavior
- Fix timezone name corruption: use take_while instead of filter
for null-terminated wide strings in TIME_ZONE_INFORMATION
- Fix wcsftime symbol name (_wcsftime -> wcsftime)
- Fix CString import cfg to unix-only
- Remove 13 expectedFailure markers from test_time for Windows
* Downgraded skips in tests
* Fixed failing tests
* Fixed test_ftplib + test_socket + test_ssl + test_threaded_import failures
* Removed comments about which tests are run in which environment
* Addressed PR comments
* Annotated skips on failing tests
* Removed unneeded tests
* Removed unneeded sys import from test_ftplib
* Added annotation to test_ftplib
* Readded skipIf to test_cleanup_with_symlink_modes with a more general ENV_POLLUTING_TESTS_WINDOWS
* Addressed PR comments
* Made changes to minimize diff in PR
* Apply suggestion from @youknowone
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Co-authored-by: Jeong, YunWon <69878+youknowone@users.noreply.github.com>
Initially this is only meant to be a small update for `test_io.py`.
But it turns out that `test.support` need a lot of cleanup especially
for `test.support.warnings_helper`.
youknowdot