Sync ten Python format and utility modules with Python 3.15 by youknowdot · Pull Request #9144 · RustPython/RustPython

youknowdot · 2026-10-15T08:43:15Z

Scope

Continue splitting #8954. The initial import covers these ten changed Python modules, ordered dependency-first:

linecache
locale
_pydecimal
decimal
random
uuid
wave
_strptime
zipapp
poplib

decimal is the public wrapper and _pydecimal its separately changed implementation. The random/uuid/zipapp changes are small CLI updates, not algorithm rewrites.

The initial 26 canonical paths were migrated through actual scripts/update_lib migrate: 20 individual Python paths and the audited six-WAV fixture directory. Source: CPython final d220409a13b77de7a6c30abe16ea90db01528edc. All 26 files are byte-identical to that source; six remain unchanged. Initial delta: 19 text files (+836/-225) plus the new 26,514-byte float WAV. Canonical guards are preserved; no manual Lib edits or marker workarounds.

Dependent CI repair

Repair commit c9a73cd85ac22b1cc1d2608ad37172ce284ab221 aligns the dependent tests exposed by the final linecache and _strptime imports. The previous loader/spec warning counts and leap-year/invalid-directive expectations were from older CPython behavior.

Four complete files were imported from the same CPython final commit through actual scripts/update_lib commands:

copy-lib for Lib/_pydatetime.py, including the canonical ISO-format validation needed by the updated tests.
migrate for Lib/test/test_time.py, Lib/test/datetimetester.py, and Lib/test/test_warnings/__init__.py.

The first three files are byte-identical to final. The warnings test file differs only by its sole pre-existing tracemalloc expected-failure marker, preserved by the migration. No new skips or expected-failure markers were added.

Three narrow native warning prerequisites accompany those imports:

Forward the module name to the eighth WarningMessage argument.
Use the canonical sys context when the warning stack walk is exhausted.
Format invalid warning-class diagnostics with the existing qualified-name helper.

No native datetime implementation changes are included.

Validation

Repair head `c9a73cd85ac22b1cc1d2608ad37172ce284ab221`

Normal commit hooks passed; the tested source tree stayed clean and unchanged.
Matching release build passed with no default features and threading,stdlib,stdio,importlib,host_env.
Strict release VM Clippy passed for all targets with no default features, compiler,gc,host_env,stdio,importlib,encodings,threading, and -D warnings.
75 selected canonical cases: 71 passed, 4 canonical skips. Coverage includes the original warning/time/datetime CI failures, warning module/category behavior, and new Pure/Fast datetime ISO-format and strptime cases.
The four skips are TestDateTime_{Pure,Fast}.test_microsecond_rounding_{decimal,fraction}. The unchanged canonical decorator reports tzset required because the native time module does not expose tzset. These four numerical test bodies were not executed. No other skips, expected failures, or unexpected successes were accepted.
Separate import-only validation constructed the exact canonical Pure/Fast wrappers without running test bodies. Backend identities, imported-source membership, all 3,536 tracked source hashes, the 2,328-entry original Lib inventory, and 10 tracked symlinks were checked. Each selected case used a fresh bounded process with -B -S, optimize=0, a private temporary directory, C locale, a 30-second wall limit, 1 GiB address-space limit, and 16 MiB combined output cap. No source drift or resource-cap failure occurred.
CI for the repair head is pending; the local focused results do not establish full CI success.

Initial import validation at `a3e5f2d166ecde93b97e13e83d93fecd5dc9e5d0`

Normal commit hooks passed; clean tested head a3e5f2d166ecde93b97e13e83d93fecd5dc9e5d0.
Matching narrow release build passed with threading,stdlib,stdio,importlib,host_env and no default features. Native Rust was unchanged at that initial head. This is not ABI3t or freeze-stdlib conformance certification.
21 bounded fresh-process cases passed: 17 canonical selected methods, one faithfully extracted canonical decimal metadata method, and three supplemental contracts (unconnected POP3 control-character handling, float WAV fixture, decimal flags/version).
Natural candidate origins and full loaded-source closure checked before/after cases; complete tracked-source hashes unchanged. -S/-B, optimize=0, private temporary directories, C locale, 30-second deadline plus 5-second kill grace, 1 GiB virtual memory and bounded combined output. Zero skips/xfails/XPASS.
Decimal extraction preserves original classes/assertions/filename but does not run the decimal corpus harness. POP3 supplemental coverage does not run its server/thread fixtures or open a connection. Random imports still perform ordinary OS entropy reads before selected fixed-seed cases.

No full test-suite, statistical/thread/GC stress, UUID hardware discovery, network-server or C-decimal coverage is claimed. Draft pending CI and review; no merge requested.

Migrate dependency-ordered linecache, locale, _pydecimal, decimal, random, uuid, wave, _strptime, zipapp and poplib with their canonical tests and WAV fixtures using update_lib. Assisted-by: OpenAI Codex:model version unavailable

coderabbitai · 2026-10-15T08:43:23Z

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

⚙️ Run configuration

Configuration used: Repository: RustPython/RustPython/.coderabbit.yml
Review profile: CHILL
Plan: Advanced
Run ID: e0892bf9-7953-4fcb-b4dd-01c3213e7c72

📥 Commits

Reviewing files that changed from the base of the PR and between 498adff and c9a73cd.

⛔ Files ignored due to path filters: 24

Lib/_pydatetime.py is excluded by !Lib/**
Lib/_pydecimal.py is excluded by !Lib/**
Lib/_strptime.py is excluded by !Lib/**
Lib/decimal.py is excluded by !Lib/**
Lib/linecache.py is excluded by !Lib/**
Lib/locale.py is excluded by !Lib/**
Lib/poplib.py is excluded by !Lib/**
Lib/random.py is excluded by !Lib/**
Lib/test/audiodata/pluck-float32.wav is excluded by !**/*.wav, !Lib/**
Lib/test/audiotests.py is excluded by !Lib/**
Lib/test/datetimetester.py is excluded by !Lib/**
Lib/test/test_decimal.py is excluded by !Lib/**
Lib/test/test_linecache.py is excluded by !Lib/**
Lib/test/test_locale.py is excluded by !Lib/**
Lib/test/test_poplib.py is excluded by !Lib/**
Lib/test/test_random.py is excluded by !Lib/**
Lib/test/test_strptime.py is excluded by !Lib/**
Lib/test/test_time.py is excluded by !Lib/**
Lib/test/test_uuid.py is excluded by !Lib/**
Lib/test/test_warnings/__init__.py is excluded by !Lib/**
Lib/test/test_wave.py is excluded by !Lib/**
Lib/uuid.py is excluded by !Lib/**
Lib/wave.py is excluded by !Lib/**
Lib/zipapp.py is excluded by !Lib/**

📒 Files selected for processing: 2

crates/vm/src/stdlib/_warnings.rs
crates/vm/src/warn.rs

+-----------------------------------------------------+
| Your types are doing parkour to avoid being useful. |
+-----------------------------------------------------+
  \
   \   (\__/)
       (•ㅅ•)
       / 　 づ

✨ Finishing Touches

🧪 Generate unit tests (beta)

Create a new PR

Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

_{Comment @coderabbitai help to get the list of available commands.}

github-actions · 2026-10-15T09:51:17Z

📦 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/decimal.py
[x] lib: cpython/Lib/_pydecimal.py
[x] test: cpython/Lib/test/test_decimal.py

dependencies:

decimal

dependent tests: (76 tests)

decimal: test_asyncio test_buffer test_builtin test_compare test_configparser test_decimal test_fractions test_fstring test_itertools test_json test_locale test_math test_math_integer test_numeric_tower test_operator test_os test_statistics test_time test_tokenize test_tomllib test_xmlrpc
- fractions: test_float test_random test_string
  - statistics: test_signal
- statistics:
  - random: test_asyncio test_bisect test_bz2 test_collections test_complex test_context test_dbm_dumb test_deque test_descr test_devpoll test_dict test_dummy_thread test_email test_functools test_grp test_heapq test_hmac test_importlib test_int test_io test_logging test_long test_lzma test_mmap test_ordered_dict test_poll test_posixpath test_pow test_pprint test_pwd test_queue test_regrtest test_richcmp test_selectors test_set test_shutil test_socket test_sort test_strtod test_struct test_sys test_tarfile test_thread test_threading test_traceback test_unparse test_uuid test_weakref test_zipfile test_zlib test_zstd

[x] lib: cpython/Lib/wave.py
[x] test: cpython/Lib/test/test_wave.py

dependencies:

wave

dependent tests: (1 tests)

wave: test_wave

[x] lib: cpython/Lib/linecache.py
[x] test: cpython/Lib/test/test_linecache.py

dependencies:

linecache

dependent tests: (150 tests)

[x] lib: cpython/Lib/datetime.py
[x] lib: cpython/Lib/_strptime.py
[x] lib: cpython/Lib/_pydatetime.py
[x] test: cpython/Lib/test/test_datetime.py
[x] test: cpython/Lib/test/test_strptime.py

dependencies:

datetime

dependent tests: (67 tests)

[x] lib: cpython/Lib/random.py
[x] test: cpython/Lib/test/test_random.py

dependencies:

random

dependent tests: (141 tests)

[x] lib: cpython/Lib/zipapp.py
[x] test: cpython/Lib/test/test_zipapp.py

dependencies:

zipapp

dependent tests: (2 tests)

zipapp: test_pdb test_zipapp

[x] lib: cpython/Lib/poplib.py
[x] test: cpython/Lib/test/test_poplib.py

dependencies:

poplib

dependent tests: (1 tests)

poplib: test_poplib

[x] lib: cpython/Lib/locale.py
[x] test: cpython/Lib/test/test_locale.py
[x] test: cpython/Lib/test/test__locale.py

dependencies:

locale

dependent tests: (105 tests)

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

dependencies:

uuid

dependent tests: (2 tests)

uuid: test_os
- wave: test_wave

[x] lib: cpython/Lib/warnings.py
[x] lib: cpython/Lib/_py_warnings.py
[x] test: cpython/Lib/test/test_warnings (TODO: 1)

dependencies:

warnings

dependent tests: (53 tests)

warnings: test_argparse test_array test_asyncio test_buffer test_builtin test_codecs test_codeop test_compile test_coroutines test_ctypes test_descr test_fnmatch test_fstring test_funcattrs test_genericpath test_glob test_global test_grammar test_hashlib test_hmac test_importlib test_inspect test_io test_logging test_ntpath test_os test_pickle test_posix test_pty test_pyclbr test_pyrepl test_random test_re test_runpy test_set test_socket test_sqlite3 test_str test_string_literals test_support test_sys test_sys_settrace test_tarfile test_tempfile test_thread test_threading test_type_cache test_typing test_unicode_file_functions test_unittest test_unparse test_xml_etree test_zipimport

[x] test: cpython/Lib/test/test_time.py
[x] test: cpython/Lib/test/test_strftime.py

dependencies:

dependent tests: (251 tests)

Legend:

[+] path exists in CPython
[x] up-to-date, [ ] outdated

codspeed · 2026-10-15T10:22:16Z

Merging this PR will not alter performance

✅ 62 untouched benchmarks
⏩ 4 skipped benchmarks¹

_{Comparing youknowdot:split-pure-python-formats-final (a3e5f2d) with main (498adff)}

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. ↩

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. Assisted-by: OpenAI Codex:model version unavailable

chatgpt-codex-connector · 2026-10-15T12:59:46Z

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	⚠️ Failed 2026-10-15T13:17:45.305862Z	`c9a73cd`	Draft marked ready

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

Open a pull request for review
Mark a draft as ready
Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

Update ten Python library modules to Python 3.15 final

a3e5f2d

Migrate dependency-ordered linecache, locale, _pydecimal, decimal, random, uuid, wave, _strptime, zipapp and poplib with their canonical tests and WAV fixtures using update_lib. Assisted-by: OpenAI Codex:model version unavailable

youknowone approved these changes Oct 15, 2026

View reviewed changes

youknowone marked this pull request as ready for review October 15, 2026 12:59

youknowone merged commit 9014319 into RustPython:main Oct 15, 2026
20 of 21 checks passed

Navigation Menu

Repository navigation

Sync ten Python format and utility modules with Python 3.15 - #9144

Sync ten Python format and utility modules with Python 3.15#9144
youknowone merged 2 commits into
RustPython:mainfrom
youknowdot:split-pure-python-formats-final

youknowdot commented Oct 15, 2026 •

edited

Loading

Uh oh!

coderabbitai Bot commented Oct 15, 2026 •

edited

Loading

Uh oh!

github-actions Bot commented Oct 15, 2026 •

edited

Loading

Uh oh!

codspeed Bot commented Oct 15, 2026

Uh oh!

Uh oh!

chatgpt-codex-connector Bot commented Oct 15, 2026 •

edited

Loading

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

Conversation

youknowdot commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Scope

Dependent CI repair

Validation

Repair head c9a73cd85ac22b1cc1d2608ad37172ce284ab221

Initial import validation at a3e5f2d166ecde93b97e13e83d93fecd5dc9e5d0

Uh oh!

coderabbitai Bot commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

github-actions Bot commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

📦 Library Dependencies

Uh oh!

codspeed Bot commented Oct 15, 2026

Merging this PR will not alter performance

Footnotes

Uh oh!

Uh oh!

chatgpt-codex-connector Bot commented Oct 15, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codex Review Summary

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

youknowdot commented Oct 15, 2026 •

edited

Loading

Repair head `c9a73cd85ac22b1cc1d2608ad37172ce284ab221`

Initial import validation at `a3e5f2d166ecde93b97e13e83d93fecd5dc9e5d0`

coderabbitai Bot commented Oct 15, 2026 •

edited

Loading

github-actions Bot commented Oct 15, 2026 •

edited

Loading

chatgpt-codex-connector Bot commented Oct 15, 2026 •

edited

Loading