[3.14] ensurepip failing on s390x musl linux

[mayeut]

Bug report

Bug description:

downstream issues:

• ensurepip failing on s390x 3.14.0a6 Alpine images docker-library/python#1014
• feature: add CPython 3.14 pypa/manylinux#1772

I unfortunately can't try to debug this as it seems not to occur when building/running locally using qemu.

if test "xupgrade" != "xno"  ; then \
	case upgrade in \
		upgrade) ensurepip="--upgrade" ;; \
		install|*) ensurepip="" ;; \
	esac; \
	LD_LIBRARY_PATH=/usr/src/python ./python -E -m ensurepip \
		$ensurepip --root=/ ; \
fi
Traceback (most recent call last):
  File "<string>", line 6, in <module>
    runpy.run_module("pip", run_name="__main__", alter_sys=True)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen runpy>", line 226, in run_module
  File "<frozen runpy>", line 98, in _run_module_code
  File "<frozen runpy>", line 88, in _run_code
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/__main__.py", line 22, in <module>
    from pip._internal.cli.main import main as _main
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/cli/main.py", line 11, in <module>
    from pip._internal.cli.autocompletion import autocomplete
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/cli/autocompletion.py", line 10, in <module>
    from pip._internal.cli.main_parser import create_main_parser
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/cli/main_parser.py", line 9, in <module>
    from pip._internal.build_env import get_runnable_pip
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/build_env.py", line 17, in <module>
    from pip._internal.cli.spinners import open_spinner
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/cli/spinners.py", line 9, in <module>
    from pip._internal.utils.logging import get_indentation
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/utils/logging.py", line 29, in <module>
    from pip._internal.utils.misc import ensure_dir
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_internal/utils/misc.py", line 37, in <module>
    from pip._vendor.packaging.requirements import Requirement
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/requirements.py", line 8, in <module>
    from ._parser import parse_requirement as _parse_requirement
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/_parser.py", line 12, in <module>
    from ._tokenizer import DEFAULT_RULES, Tokenizer
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/_tokenizer.py", line 8, in <module>
    from .specifiers import Specifier
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/specifiers.py", line 18, in <module>
    from .utils import canonicalize_version
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/utils.py", line 11, in <module>
    from .tags import Tag, parse_tag
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/tags.py", line 23, in <module>
    from . import _manylinux, _musllinux
  File "/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl/pip/_vendor/packaging/_manylinux.py", line 12, in <module>
    from ._elffile import EIClass, EIData, ELFFile, EMachine
  File "<frozen importlib._bootstrap>", line 1368, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1330, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1264, in _find_spec
  File "<frozen importlib._bootstrap_external>", line 1295, in find_spec
  File "<frozen importlib._bootstrap_external>", line 1269, in _get_spec
  File "<frozen zipimport>", line 110, in find_spec
  File "<frozen importlib._bootstrap>", line 675, in spec_from_loader
  File "<frozen importlib._bootstrap_external>", line 583, in spec_from_file_location
  File "<frozen zipimport>", line 171, in get_filename
  File "<frozen zipimport>", line 810, in _get_module_code
  File "<frozen zipimport>", line 739, in _compile_source
MemoryError: Parser stack overflowed - Python source too complex to parse
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/src/python/Lib/ensurepip/__main__.py", line 5, in <module>
    sys.exit(ensurepip._main())
             ~~~~~~~~~~~~~~~^^
  File "/usr/src/python/Lib/ensurepip/__init__.py", line 257, in _main
    return _bootstrap(
        root=args.root,
    ...<4 lines>...
        default_pip=args.default_pip,
    )
  File "/usr/src/python/Lib/ensurepip/__init__.py", line 172, in _bootstrap
    return _run_pip([*args, "pip"], [os.fsdecode(tmp_wheel_path)])
  File "/usr/src/python/Lib/ensurepip/__init__.py", line 87, in _run_pip
    return subprocess.run(cmd, check=True).returncode
           ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/usr/src/python/Lib/subprocess.py", line 577, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['/usr/src/python/python', '-W', 'ignore::DeprecationWarning', '-c', '\nimport runpy\nimport sys\nsys.path = [\'/tmp/tmp29e5ljf7/pip-25.0.1-py3-none-any.whl\'] + sys.path\nsys.argv[1:] = [\'install\', \'--no-cache-dir\', \'--no-index\', \'--find-links\', \'/tmp/tmp29e5ljf7\', \'--root\', \'/\', \'--upgrade\', \'pip\']\nrunpy.run_module("pip", run_name="__main__", alter_sys=True)\n']' returned non-zero exit status 1.
make: *** [Makefile:2365: install] Error 1

CPython versions tested on:

3.14

Operating systems tested on:

Linux