PKG-15601 — align python-feedstock with conda-forge

[skupr-anaconda]

Destination channel: ad-testing/label/py315

Links

• Jira
• Upstream repository
• conda-forge python-feedstock main @ 3.15.0rc2 (Add a libpython3.dylib to support ABI3 applications conda-forge/python-feedstock#885 install_shared, add run-export to libpython conda-forge/python-feedstock#928 libpython run_exports)

Explanation of changes:

Reconstructed on origin/master after #257 merged. Discarded conflict merge 2a733207 (stray {% endif %} after sha256 broke PBP generate).

• Free-threading CBC: gil_type → freethreading / PY_FREETHREADING. Zero remaining gil_type / PY_GIL_DISABLED / from_source_control / bootstrap selectors.
• Unix build_type release/debug (not zipped with channel_targets; all variants → testing py315). PKG-2624 stays a product spike, not a merge gate.
• Split libpython*.so into libpython (install_shared.sh / install_static.sh). python does not install libpython*.so. SYSCONFIG from the shared build (CF LDLIBRARY is set to libpython3.9a although no static lib is included in mambaforge for Linux conda-forge/python-feedstock#565). ignore_run_exports_from cxx on libpython / libpython-static.
• CF Add a libpython3.dylib to support ABI3 applications conda-forge/python-feedstock#885 already present (install_shared.sh sha 5dafbd13, osx libpython3.dylib reexport).
• CF add run-export to libpython conda-forge/python-feedstock#928 added: libpython unix weak run_exports pin_subpackage("libpython", min_pin="x.x", max_pin="x").
• Remaining CF topology: cpython noarch, python_site_packages_path, python-freethreading / python-gil / python-jit. Deleted unused build_static.sh / build_static.bat.
• Win FT patches 0026 / 0030 wrapped in {% if freethreading == "yes" %} (not gil_type selectors).
• Patch numbering matches master: 0028 conda-site.pth, 0029 zlib-ng, 0030 xxlimited.
• Prefix-replacement tests match CF (case $PKG_NAME: static or shared). python asserts absence of libpython*.so/.dylib/.a.
• Frozen AR-delta vs CF (do not take): tk 9.0.4 / -ltcl9tk / Win TclVersion=%tk% (not CF 8.6 %THREAD%); llvm-tools-21 + $HOST-llvm-ar → llvm-ar-21; omit _python_rc; dummy channel_targets (testing dest only); pinned aggregate host deps; msys2-gcc-libs; no binutils; downstreams commented; skip_compile_pyc skipped; license PSF-2.0; python-jit FT skip + run_test_jit.py; always apply 0023-branding.patch; keep 0029/0030; cmake-no-system / ninja-base / make; linux sysroot missing_dso whitelist.

Notes:

• Upload dest stays ad-testing/label/py315. Do not merge to pkgs/main.
• Linter: parsing_jinja_failure skipped (freethreading / dummy channel_targets jinja). Graph generate must succeed; linter skip may stay red.
• python-jit is noarch; run_test_jit.py skips when the interpreter was built without JIT (debug / FT / non-x86_64).
• Debug + release share the py315 label (F94); consumers must pin build string.

[package-build-platform]

Failed to submit graph for 2a73320

Message:
Failed to run command: 'pbp generate from-feedstock --output /tmp/tmpok_7aa4i/python-feedstock.yaml --custom-metadata-file /tmp/tmpok_7aa4i/custom_metadata.yaml --release-name python-feedstock-256-2a7332071849a403165047e14e19b21691553016 python-feedstock/recipe', with error: 'INFO:root:Found feedstock python-feedstock at /tmp/tmpok_7aa4i/python-feedstock/recipe
INFO:root:Build/Test graph from python-feedstock
Created by sbx_user1051 on 2026-09-21 08:17:48
Command line: /opt/conda/envs/webhook-listener/bin/pbp generate from-feedstock --output /tmp/tmpok_7aa4i/python-feedstock.yaml --custom-metadata-file /tmp/tmpok_7aa4i/custom_metadata.yaml --release-name python-feedstock-256-2a7332071849a403165047e14e19b21691553016 python-feedstock/recipe

INFO:root:Found abs.yaml in /tmp/tmpok_7aa4i/python-feedstock
INFO:pbpcli.utils.common:Setting env var: ANACONDA_ROCKET_ENABLE_PY315 = True.
INFO:root:Creating graph from feedstock at: python-feedstock
INFO:pbpcli.utils.common:Setting env var: CONDA_SUBDIR = linux-64.
INFO:pbpcli.utils.expand_variants:Elapsed time for get_package_variants: 0.11 seconds
INFO:pbpcli.utils.expand_variants:Matrix vars: 4 unchanging vars:(476), changing vars (4): ['blas_impl', 'build_type', 'cuda_compiler_version', 'freethreading']
INFO:pbpcli.utils.expand_variants:Elapsed time for preparation for render: 0.00 seconds
INFO:pbpcli.utils.common:Setting env var: CONDA_PKGS_DIRS = /tmp/conda_pkgs_47xiibgz.
INFO:pbpcli.utils.common:Unsetting env var: CONDA_PKGS_DIRS
INFO:pbpcli.utils.common:Unsetting env var: CONDA_SUBDIR
INFO:pbpcli.utils.common:Unsetting env var: ANACONDA_ROCKET_ENABLE_PY315
Traceback (most recent call last):
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/metadata.py", line 2087, in _get_contents
template = env.get_or_select_template(filename)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/environment.py", line 1087, in get_or_select_template
return self.get_template(template_name_or_list, parent, globals)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/environment.py", line 1016, in get_template
return self._load_template(name, globals)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/environment.py", line 975, in _load_template
template = self.loader.load(self, name, self.make_globals(globals))
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/loaders.py", line 138, in load
code = environment.compile(source, name, filename)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/environment.py", line 771, in compile
self.handle_exception(source=source_hint)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
raise rewrite_traceback_stack(source=source)
File "/tmp/tmpok_7aa4i/python-feedstock/recipe/meta.yaml", line 71, in template
{% endif %}
jinja2.exceptions.TemplateSyntaxError: Encountered unknown tag 'endif'.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/conda/envs/webhook-listener/bin/pbp", line 10, in
sys.exit(cli())
~~~^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 1524, in call
return self.main(*args, **kwargs)
~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 1445, in main
rv = self.invoke(ctx)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 1912, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 1912, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 1308, in invoke
return ctx.invoke(self.callback, **ctx.params)
~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/click/core.py", line 877, in invoke
return callback(*args, **kwargs)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/pbpcli/cli/generate.py", line 351, in wrapper
return func(*args, **kwargs)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/pbpcli/cli/generate.py", line 629, in from_feedstock
build_configs, test_configs = expand_build_matrix(
~~~~~~~~~~~~~~~~~~~^
feedstock.recipe_dir_path, src_channels, parsed_user_variants
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/pbpcli/cli/generate.py", line 99, in expand_build_matrix
_targets, build_configs, test_configs = variants_for_feedstock_and_platform(
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
recipe_dir_path, platform, src_channels, user_variants
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/pbpcli/utils/expand_variants.py", line 672, in variants_for_feedstock_and_platform
metadata_tuples = api.render(
parsed.recipe,
...<2 lines>...
variants=user_variants,
)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/api.py", line 91, in render
metadata_tuples = render_recipe(
recipe_path,
...<4 lines>...
permit_unsatisfiable_variants=permit_unsatisfiable_variants,
)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/render.py", line 1082, in render_recipe
m = MetaData(str(recipe), config=config)
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/metadata.py", line 1240, in init
self.parse_again(permit_undefined_jinja=True, allow_no_other_outputs=True)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/metadata.py", line 1329, in parse_again
self._get_contents(
~~~~~~~~~~~~~~~~~~^
permit_undefined_jinja,
^^^^^^^^^^^^^^^^^^^^^^^
allow_no_other_outputs=allow_no_other_outputs,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
bypass_env_check=bypass_env_check,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
),
^
File "/opt/conda/envs/webhook-listener/lib/python3.13/site-packages/conda_build/metadata.py", line 2102, in _get_contents
raise CondaBuildUserError(
f"Failed to render jinja template in {self.meta_path}:\n{str(ex)}"
)
conda_build.exceptions.CondaBuildUserError: Failed to render jinja template in /tmp/tmpok_7aa4i/python-feedstock/recipe/meta.yaml:
Encountered unknown tag 'endif'.
'
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