PKG-15601 + PKG-2624 + PKG-17264 — CF-align freethreading/debug on 3.15.0rc1 (main) by skupr-anaconda · Pull Request #233 · AnacondaRecipes/python-feedstock

skupr-anaconda · 2026-07-06T11:53:18Z

Summary

Ports approved PR #244 (3.15.0rc1 / LLVM 21 / tk 9) onto CF-align freethreading + build_type (debug) work from this branch.

Version: 3.15.0rc1 (sha256 from PKG-17264 — Python 3.15.0rc1 #244); patches refreshed from PKG-17264-py315rc1
CF-align kept: CBC freethreading / build_type; no gil_type regression
LLVM: osx c_compiler_version/cxx_compiler_version: 21; llvm-ar-21 wrappers; drop unversioned llvm-tools
Destination: pkgs/main (PBP default) — no upload_channels, no labeled testing channels
Base: master-py3.15.0rc1 (same lineage as PKG-17264 — Python 3.15.0rc1 #244). Leave PKG-17264 — Python 3.15.0rc1 #244 open/unmerged.

Do not merge

Wait for two teammate approvals. Intentional main-channel delivery (not ad-testing/label/py315).

Links

Jira: PKG-15601, PKG-2624, PKG-17264
Upstream: https://www.python.org/downloads/release/python-3150rc1/

Test plan

PBP graph green on HEAD (builds + tests)
Linter annex reviewed (non-blocking)
Confirm no upload_channels / testing labels in abs.yaml
Two approvals before merge

skupr-anaconda · 2026-07-07T17:33:59Z

Staging artifact check — `5b800b4`

Channel: staging 5b800b4 (64 entries = 32 builds × .conda + .tar.bz2)

Matrix (platform outputs)

Platform	Variants
linux-64, linux-aarch64, osx-arm64	release GIL, release FT, debug GIL, debug FT (`python` + `libpython-static` each)
win-64	release GIL + release FT only (no debug — expected)
noarch	`python-freethreading`, `python-gil`, `python-jit` (release/GIL only; no debug jit)

Repodata vs recipe

Check	Example	Status
FT build_number	`_0_cp315t`	✓
GIL build_number	`_100_cp315`	✓
Debug suffix	`_debug_` in build string	✓
FT track feature	`free-threading`	✓ (Anaconda naming)
FT site-packages	`lib/python3.15t/site-packages`	✓
ABI depends	`python_abi _cp315` / `_cp315t`	✓

Example repodata: linux-64 debug FT python

Prefix layout (tarball inspection)

STDLIB_VER vs VERABI split (post 0f23f75 / f89183b / 58ec5c2):

Variant	stdlib dir	config dir	lib / include
debug GIL	`lib/python3.15/`	`config-3.15d-*`	`libpython3.15d.*`, `include/python3.15d/`
debug FT	`lib/python3.15t/`	`config-3.15td-*`	`libpython3.15td.*`, `include/python3.15td/`

libpython-static debug FT: libpython3.15td.a, libpython3.15t.nolto.a, config symlink under lib/python3.15t/config-3.15td-*/.

Intentional divergences (unchanged)

track_features: free-threading (not CF py_freethreading)
PY_GIL_DISABLED / empty linkage_nature in build string
Single channel ad-testing/label/py315

Notes

bin/python3.15 still exists on debug builds from the generic python/python3.1 symlink chain; primary debug binaries are python3.15d / python3.15td.

Verdict: artifacts at 5b800b4 match CF-align expectations for freethreading + debug build_type.

cbouss

I am not sure using AI is the right call for these kind of changes. It failed the alignment part at least.

Replace gil_type/os.environ Jinja with positive freethreading CBC key and build_type debug suffix on a single ad-testing/label/py315 channel. Co-authored-by: Cursor <cursoragent@cursor.com>

Use script YAML lists to avoid duplicate-key warnings and replace the obsolete license_file_overspecified skip with only-lint missing_home so conda-lint reports All checks OK on PBP. Co-authored-by: Cursor <cursoragent@cursor.com>

…g keys Document the linkage_nature/linkage_nature_env divergence from conda-forge.

Wire PY_INTERP_DEBUG through Unix build scripts (was DEBUG_PY, so debug variants never got --with-pydebug). Align libpython-static VERABI suffix order with build_base (VER+THREAD+DBG). Skip cmake for freethreading like conda-forge. Add core debug/zstd checks to run_test.py. Co-authored-by: Cursor <cursoragent@cursor.com>

Debug Py_DEBUG builds install stdlib under lib/python${VER}${THREAD}/ while lib/config artifacts use VERABI (e.g. libpython3.15d.so, config-3.15d-*). build_base.sh was writing _sysconfigdata into lib/python3.15d/ which does not exist. Introduce STDLIB_VER for stdlib paths. Drop obsolete skip-lints entry that triggered unknown_check on current anaconda-linter. Co-authored-by: Cursor <cursoragent@cursor.com>

build_base.sh already used STDLIB_VER for stdlib dirs; build_static.sh still used VERABI (e.g. python3.15d/) so pushd to config-3.15d-* failed on debug variants. Align with conda-forge VERABI_NO_DBG split for stdlib vs ABI paths. Co-authored-by: Cursor <cursoragent@cursor.com>

Debug builds name the PIC archive libpython3.15-pic.a (not 3.15d-pic.a); build_static.sh copies that path. Align build_base.sh with conda-forge VERABI_NO_DBG naming so libpython-static debug builds can find the file. Co-authored-by: Cursor <cursoragent@cursor.com>

Debug builds install python3.15d but FindPythonLibs expects unprefixed paths; add conda-forge-style symlinks for bin, lib, and include. Skip python-jit when JIT is disabled (--enable-experimental-jit=no). Remove stray default.profraw before the osx PGO artifact check. Co-authored-by: Cursor <cursoragent@cursor.com>

Remove pydebug symlinks that mapped 3.15d artifacts onto unprefixed paths. Gate the legacy FindPythonLibs cmake test to release GIL builds only, matching the freethreading skip pattern. Co-authored-by: Cursor <cursoragent@cursor.com>

Use PY_FREETHREADING, PY_INTERP_DEBUG for optimization, CF debug symlinks and BUILD_DETAILS copy; drop linkage/OLD_HOST/compiler_compat divergences. Restore skip-lints, CF cmake gating, and remove run_test_py315.py. Co-authored-by: Cursor <cursoragent@cursor.com>

Skip python-jit where build_base.sh disables experimental JIT; set PYTHON_FOR_BUILD on Windows and patch find_python.bat after aka.ms nugetclidl broke; align track_features and ninja test dep with CF. Co-authored-by: Cursor <cursoragent@cursor.com>

Set PYTHON from the conda build env (PR #238 pattern) and drop the find_python.bat patch plus PYTHON_FOR_BUILD workaround. Co-authored-by: Cursor <cursoragent@cursor.com>

…ke-no-system - Skip FindPythonLibs cmake test for freethreading and debug builds - Use cmake-no-system (latest on main) to avoid cmake/libzstd dyld abort on osx - Restore CF-style double-backslash win path checks - Document intentional drop of linkage_nature env Jinja vs conda-forge Co-authored-by: Cursor <cursoragent@cursor.com>

Restore the cross-build pyc exclusion, remove the unsupported profraw cleanup and stale lint suppression, and express cmake gating as a linter-compatible selector. Co-authored-by: Cursor <cursoragent@cursor.com>

Bring rc1 version/sha, tk 9, osx clang 21 CBC pins, llvm-ar-21 wrappers, refreshed patches from PR #244; drop testing upload_channels so PBP defaults to pkgs/main. Keep freethreading + build_type CF-align. Co-authored-by: Cursor <cursoragent@cursor.com>

skupr-anaconda · 2026-08-19T11:34:37Z

Staging artifact check — 00142c8 (post-rebase HEAD of CF-align + rc1)

Channel: staging 00142c8 (64 entries = 32 builds × .conda + .tar.bz2)
Graph: 5316e58f — 52/52 build+test success; linter red (known duplicate-script cascade, non-blocking)

Matrix (platform outputs)

Platform	Variants
linux-64, linux-aarch64, osx-arm64	release GIL, release FT, debug GIL, debug FT (`python` + `libpython-static` each)
win-64	release GIL + release FT only (no debug — expected)
noarch	`python-freethreading`, `python-gil`, `python-jit` unix + `python-jit` win (release/GIL jit only; no debug jit)
osx-64	empty (expected: no osx-x86_64 builder / FT skip)

Repodata vs recipe

Check	Example	Status
Version	`3.15.0rc1`	✓
FT build_number	`_0_cp315t`	✓
GIL build_number	`_100_cp315`	✓
Debug suffix	`_debug_` in build string	✓
FT track feature	`py_freethreading`	✓ (CF name)
FT site-packages	`lib/python3.15t/site-packages`	✓
GIL site-packages	`lib/python3.15/site-packages`	✓
ABI depends	`python_abi * _cp315` / `_cp315t`	✓
Debug run_exports	`python 3.15.* _debug_cp315` / `_debug_cp315t`	✓
tk	`tk >=9.0.4,<9.1.0a0`	✓

Example: linux-64 debug FT python

Prefix layout (tarball inspection)

STDLIB vs VERABI split:

Variant	stdlib dir	config dir	lib / include
debug GIL	`lib/python3.15/`	`config-3.15d-*`	`libpython3.15d.*`, `include/python3.15d/`
debug FT	`lib/python3.15t/`	`config-3.15td-*`	`libpython3.15td.*`, `include/python3.15td/`
release FT	`lib/python3.15t/`	—	`bin/python3.15t`

libpython-static debug FT: libpython3.15td.a, libpython3.15t.nolto.a, config copy under lib/python3.15t/config-3.15td-*/.

Intentional divergences (unchanged)

track_features: py_freethreading (CF name; not Anaconda free-threading)
Empty linkage_nature in the build string (no _shared/_static)
No testing upload_channels / labeled channels: — PBP default destination is pkgs/main (do not merge until two approvals)

Notes

bin/python3.15 still exists on debug builds from the generic python/python3.1 symlink chain; primary debug binaries are python3.15d / python3.15td.
Two python-jit noarch builds: __unix vs __win (expected).

Verdict: artifacts at 00142c8 match CF-align expectations for freethreading + debug build_type on 3.15.0rc1.

skupr-anaconda mentioned this pull request Jul 6, 2026

Python 3.15.0b3 #232

Closed

AnacondaRecipes deleted a comment from package-build-platform Jul 6, 2026

skupr-anaconda requested review from cbouss and ifitchet July 7, 2026 17:36

skupr-anaconda self-assigned this Jul 7, 2026

skupr-anaconda marked this pull request as ready for review July 7, 2026 17:36

cbouss reviewed Jul 7, 2026

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skupr-anaconda mentioned this pull request Aug 6, 2026

PKG-13567 — Python 3.15.0b4 #239

Merged

skupr-anaconda force-pushed the py315b3-cf-align branch from 2e1c490 to 30c1cca Compare August 18, 2026 20:31

skupr-anaconda changed the title ~~PKG-15601 + PKG-2624 — CF-align freethreading and debug build_type~~ PKG-15601 + PKG-2624 + PKG-17264 — CF-align freethreading/debug on 3.15.0rc1 (main) Aug 19, 2026

skupr-anaconda changed the base branch from py315b3 to master-py3.15.0rc1 August 19, 2026 08:32

skupr-anaconda requested a review from cbouss August 19, 2026 08:32

skupr-anaconda and others added 16 commits August 19, 2026 09:37

PKG-15601 + PKG-2624: CF-align freethreading and debug build_type

9e1b1cd

Replace gil_type/os.environ Jinja with positive freethreading CBC key and build_type debug suffix on a single ad-testing/label/py315 channel. Co-authored-by: Cursor <cursoragent@cursor.com>

Fix PBP linter: script list form and only-lint scope

d94e151

Use script YAML lists to avoid duplicate-key warnings and replace the obsolete license_file_overspecified skip with only-lint missing_home so conda-lint reports All checks OK on PBP. Co-authored-by: Cursor <cursoragent@cursor.com>

Fix PBP graph submission: revert script YAML lists to duplicate strin…

c5fc0a7

…g keys Document the linkage_nature/linkage_nature_env divergence from conda-forge.

Use VERABI_NO_DBG

cfc5804

Win32: use CONDA_PYTHON_EXE instead of nuget for PCbuild.

e5d35c7

Set PYTHON from the conda build env (PR #238 pattern) and drop the find_python.bat patch plus PYTHON_FOR_BUILD workaround. Co-authored-by: Cursor <cursoragent@cursor.com>

PKG-15601/PKG-2624 — finish conda-forge review alignment

d15d307

Restore the cross-build pyc exclusion, remove the unsupported profraw cleanup and stale lint suppression, and express cmake gating as a linter-compatible selector. Co-authored-by: Cursor <cursoragent@cursor.com>

skupr-anaconda force-pushed the py315b3-cf-align branch from a114f80 to 00142c8 Compare August 19, 2026 10:02

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PKG-15601 + PKG-2624 + PKG-17264 — CF-align freethreading/debug on 3.15.0rc1 (main) - #233

PKG-15601 + PKG-2624 + PKG-17264 — CF-align freethreading/debug on 3.15.0rc1 (main)#233
skupr-anaconda wants to merge 16 commits into
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Summary

Do not merge

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Staging artifact check — 5b800b4

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Repodata vs recipe

Prefix layout (tarball inspection)

Intentional divergences (unchanged)

Notes

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skupr-anaconda commented Aug 19, 2026

Matrix (platform outputs)

Repodata vs recipe

Prefix layout (tarball inspection)

Intentional divergences (unchanged)

Notes

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skupr-anaconda commented Jul 6, 2026 •

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Staging artifact check — `5b800b4`