Bug 892353

Summary:	dev-python/pikepdf fails to compile with: ValueError: not enough values to unpack (expected 3, got 1)
Product:	Gentoo Linux	Reporter:	tt_1 <herrtimson>
Component:	Current packages	Assignee:	Andrey Grozin <grozin>
Status:	RESOLVED FIXED
Severity:	normal	CC:	python
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=891159
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	892413
Bug Blocks:
Attachments:	build.log output from emerge --info

Description tt_1 2023-01-28 07:24:08 UTC

Created attachment 849333 [details]
build.log

so this package is broken at the moment: 

>>> Compiling source in /var/tmp/portage/dev-python/pikepdf-6.2.6/work/pikepdf-6.2.6 ...
 * python3_10: running distutils-r1_run_phase distutils-r1_python_compile
python3.10 setup.py build_ext -j 12
Traceback (most recent call last):
  File "/var/tmp/portage/dev-python/pikepdf-6.2.6/work/pikepdf-6.2.6/setup.py", line 101, in <module>
    setup(
  File "/usr/lib/python3.10/site-packages/setuptools/__init__.py", line 87, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/core.py", line 147, in setup
    _setup_distribution = dist = klass(attrs)
  File "/usr/lib/python3.10/site-packages/setuptools/dist.py", line 475, in __init__
    _Distribution.__init__(
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/dist.py", line 283, in __init__
    self.finalize_options()
  File "/usr/lib/python3.10/site-packages/setuptools/dist.py", line 899, in finalize_options
    ep(self)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/integration.py", line 123, in infer_version
    _assign_version(dist, config)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/integration.py", line 59, in _assign_version
    maybe_version = _get_version(config)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/__init__.py", line 154, in _get_version
    parsed_version = _do_parse(config)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/__init__.py", line 101, in _do_parse
    version = _version_from_entrypoints(config) or _version_from_entrypoints(
  File "/usr/lib/python3.10/site-packages/setuptools_scm/_entrypoints.py", line 66, in _version_from_entrypoints
    version: ScmVersion | None = _call_entrypoint_fn(root, config, ep.load())
  File "/usr/lib/python3.10/site-packages/setuptools_scm/_entrypoints.py", line 40, in _call_entrypoint_fn
    return fn(root, config=config)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/git.py", line 312, in parse_archival
    return archival_to_version(data, config=config)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/git.py", line 286, in archival_to_version
    tag, number, node, _ = _git_parse_describe(archival_describe)
  File "/usr/lib/python3.10/site-packages/setuptools_scm/git.py", line 245, in _git_parse_describe
    tag, number, node = describe_output.rsplit("-", 2)
ValueError: not enough values to unpack (expected 3, got 1)
 * ERROR: dev-python/pikepdf-6.2.6::gentoo failed (compile phase):
 *   (no error message)

Comment 1 tt_1 2023-01-28 07:24:40 UTC

Created attachment 849335 [details]
output from emerge --info

Comment 2 tt_1 2023-01-28 07:25:54 UTC

To fix this, I have to emerge dev-python/setuptools_scm_git_archive to my system. I don't know why this was removed from BDEPEND a week ago, it is still needed at build time.

Comment 3 Sam James archtester

2023-01-28 07:27:51 UTC

I think it might be something else on your system which needs dev-python/setuptools_scm_git_archive, as nothing in pikepdf actually tries to use it as far as I can see.

If you edit /usr/lib/python3.10/site-packages/setuptools_scm/integration.py and put a print(dist_name) under 'config = Configuration.from_file(dist_name=dist_name)', what does the new build.log look like?

Comment 4 Sam James archtester

2023-01-28 07:28:37 UTC

(In reply to tt_1 from comment #2)
> To fix this, I have to emerge dev-python/setuptools_scm_git_archive to my
> system. I don't know why this was removed from BDEPEND a week ago, it is
> still needed at build time.

It was removed because of https://github.com/pikepdf/pikepdf/commit/cc977d343ce044fe021c545c8d8c6b159d477f6b. pikepdf isn't actually using it - if I'm wrong, please show me where.

I suspect something else on your system is missing the dep and when setuptools initialises, it finds that package, and blows up.

Comment 5 Chris Mayo 2023-01-28 17:10:00 UTC

There was a bug in setuptools_scm-7.0.5.

Fixed in setuptools_scm-7.1.0:
https://github.com/pypa/setuptools_scm/pull/772

Stabilization bug 892413 filed.

Comment 6 tt_1 2023-01-28 20:26:14 UTC

its fixed with setuptools_scm-7.1.0, thank you for the hint and fast stabilization.