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failing to package attrs-strict for swh.model


From: zimoun
Subject: failing to package attrs-strict for swh.model
Date: Tue, 23 Jun 2020 22:54:34 +0200

Dear,

I am trying to package "swh.model" which is a CLI tool developed by
Software Heritage.  It allows to compute SWHID which is their internal
hash tag.  This package is on PyPI, so I did:

   guix import pypi -r swh.model

which returns 2 packages: "python-attrs-srtict" and "swh.model".


Aside some minor tweaks about the license, synopsis and description I
added them to "gnu/packages/python-xyz.scm" and then I simply have tried
to build:

  ./pre-inst-env guix build python-attrs-strict

Well, the first unexpected thing is an 404 error:

--8<---------------cut here---------------start------------->8---
building 
/gnu/store/r6dgvrq486d8hdii9szz2filq85nbwjx-attrs-strict-0.1.0.tar.gz.drv...

Starting download of 
/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz
>From 
>https://files.pythonhosted.org/packages/source/a/attrs-strict/attrs-strict-0.1.0.tar.gz...
download failed 
"https://files.pythonhosted.org/packages/source/a/attrs-strict/attrs-strict-0.1.0.tar.gz";
 404 "Not Found"

Starting download of 
/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz
>From 
>https://ci.guix.gnu.org/file/attrs-strict-0.1.0.tar.gz/sha256/0nldyv053xiv9aaysjszgisi9d9d87f5l2jf3rhl3xm9c9spar96...
download failed 
"https://ci.guix.gnu.org/file/attrs-strict-0.1.0.tar.gz/sha256/0nldyv053xiv9aaysjszgisi9d9d87f5l2jf3rhl3xm9c9spar96";
 404 "Not Found"

Starting download of 
/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz
>From 
>https://tarballs.nixos.org/sha256/0nldyv053xiv9aaysjszgisi9d9d87f5l2jf3rhl3xm9c9spar96...
download failed 
"https://tarballs.nixos.org/sha256/0nldyv053xiv9aaysjszgisi9d9d87f5l2jf3rhl3xm9c9spar96";
 404 "Not Found"

Starting download of 
/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz
>From 
>https://archive.softwareheritage.org/api/1/content/sha256:2665757562a9f641611e4e0a5adc412db514757c5f4bed954a3bf651c0f68d5a/raw/...
download failed 
"https://archive.softwareheritage.org/api/1/content/sha256:2665757562a9f641611e4e0a5adc412db514757c5f4bed954a3bf651c0f68d5a/raw/";
 404 "Not Found"
failed to download 
"/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz" from 
"https://files.pythonhosted.org/packages/source/a/attrs-strict/attrs-strict-0.1.0.tar.gz";
builder for 
`/gnu/store/r6dgvrq486d8hdii9szz2filq85nbwjx-attrs-strict-0.1.0.tar.gz.drv' 
failed to produce output path 
`/gnu/store/9p0baqs1386gv5hhzrv5yrcj35klxpfi-attrs-strict-0.1.0.tar.gz'
build of 
/gnu/store/r6dgvrq486d8hdii9szz2filq85nbwjx-attrs-strict-0.1.0.tar.gz.drv failed
View build log at 
'/var/log/guix/drvs/r6/dgvrq486d8hdii9szz2filq85nbwjx-attrs-strict-0.1.0.tar.gz.drv.bz2'.
cannot build derivation 
`/gnu/store/yn1vi5ank86870xc75w82pwbpahgv4vx-python-attrs-strict-0.1.0.drv': 1 
dependencies couldn't be built
guix build: error: build of 
`/gnu/store/yn1vi5ank86870xc75w82pwbpahgv4vx-python-attrs-strict-0.1.0.drv'failed
--8<---------------cut here---------------end--------------->8---

What do I miss?

Then, from the PyPI webpage, I download the tarball by hand (wget) and
then I run:

    /pre-inst-env guix build python-attrs-strict \
          --with-source=python-attrs-strict=attrs_strict-0.1.0.tar.gz

which fails at the check phase.  Well, I have added as 'native-inputs'
the packages "python-pytest" and "python-pluggy".  And I add these
lines:

--8<---------------cut here---------------start------------->8---
    (arguments
     `(#:phases (modify-phases %standard-phases
                  (replace 'check
                    (lambda _
                      (invoke "pytest")
                      #t)))))
--8<---------------cut here---------------end--------------->8---

But the tests is still failing with the same message at this end:

--8<---------------cut here---------------start------------->8---
AttributeError: type object 'Callable' has no attribute '_abc_registry'
--8<---------------cut here---------------end--------------->8---

Well, I am not a Python packager expert and I do not know how to
debug. Advices welcome. :-)


All the best,
simon



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