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Re: Issues building the package 'python-asyncmy'

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Hello,

Kathara and I still try to get this package build.

Am 19.08.24 um 23:01 schrieb Kathara Sasikumar:
> Hellooo Python Team!
> 
> I was trying to package 'python-asyncmy',
> Upstream: https://github.com/long2ice/asyncmy
> 
> This is my current working Salsa repo :
> https://salsa.debian.org/kathara/python-asyncmy
> 
> There's no ITP yet. While building this package within the chroot, I got
> this error message:
> 
>> root@ivy:/build/python-asyncmy-0.2.9# pybuild --build -i python{version} -p 3.12 -v
>> D: pybuild pybuild:602: version: 6.20240603
>> D: pybuild pybuild:603: ['/usr/bin/pybuild', '--build', '-i', 'python{version}', '-p', '3.12', '-v']
>> D: pybuild pybuild:39: cfg: Namespace(verbose=True, quiet=False, really_quiet=False, detect_only=False, clean_only=False, configure_only=False, build_only=True, install_only=False, test_only=False, autopkgtest_only=False, list_systems=False, print_args=None, before_clean=None, clean_args=None, after_clean=None, before_configure=None, configure_args=None, after_configure=None, before_build=None, build_args=None, after_build=None, before_install=None, install_args=None, after_install=None, before_test=None, test_args=None, after_test=None, test_nose=False, test_nose2=False, test_pytest=False, test_tox=False, test_stestr=False, test_custom=False, dir='/build/python-asyncmy-0.2.9', destdir='debian/tmp', ext_destdir=None, ext_pattern='\\.so(\\.[^/]*)?$', ext_sub_pattern=None, ext_sub_repl=None, install_dir=None, name=None, system=None, versions=['3.12'], interpreter=['python{version}'], disable=None, custom_tests=False)
>> D: pybuild __init__:37: cannot initialize 'cmake' plugin: Missing command 'cmake'
>> D: pybuild __init__:37: cannot initialize 'meson' plugin: Missing command 'meson'
>> D: pybuild tools:231: invoking: /usr/bin/dpkg-architecture
>> D: pybuild debhelper:174: source=python-asyncmy, binary packages=['python3-asyncmy']
>> D: pybuild pybuild:151: detected build system: pyproject (certainty: 99%)
>> I: pybuild plugin_pyproject:129: Building wheel for python3.12 with "build" module
>> I: pybuild base:311: python3.12 -m build --skip-dependency-check --no-isolation --wheel --outdir /build/python-asyncmy-0.2.9/.pybuild/cpython3_3.12
>> D: pybuild tools:231: invoking: python3.12 -m build --skip-dependency-check --no-isolation --wheel --outdir /build/python-asyncmy-0.2.9/.pybuild/cpython3_3.12
>> I: pybuild plugin_pyproject:144: Unpacking wheel built for python3.12 with "installer" module
>> E: pybuild pybuild:389: build: plugin pyproject failed with: argument should be a str or an os.PathLike object where __fspath__ returns a str, not 'NoneType'
>> Traceback (most recent call last):
>>    File "/usr/bin/pybuild", line 387, in main
>>      run(func, i, version, c)
>>    File "/usr/bin/pybuild", line 325, in run
>>      result = func(context, args)
>>               ^^^^^^^^^^^^^^^^^^^
>>    File "/usr/share/dh-python/dhpython/build/plugin_pyproject.py", line 109, in build
>>      self.unpack_wheel(context, args)
>>    File "/usr/share/dh-python/dhpython/build/plugin_pyproject.py", line 166, in unpack_wheel
>>      wheel = Path(self.built_wheel(context, args))
>>              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>    File "/usr/lib/python3.12/pathlib.py", line 1164, in __init__
>>      super().__init__(*args)
>>    File "/usr/lib/python3.12/pathlib.py", line 373, in __init__
>>      raise TypeError(
>> TypeError: argument should be a str or an os.PathLike object where __fspath__ returns a str, not 'NoneType'
>> root@ivy:/build/python-asyncmy-0.2.9#

I've dived a bit into the sources and the build process to find out what 
is going wrong in a first place.

It turned out that simply there is no wheel that could be used at this 
stage. So the seen output is happen because no wheel was build by dh-python.

The code in function built_wheel() in build/base.py is returning None in 
case no wheel could be found:

https://salsa.debian.org/python-team/tools/dh-python/-/blob/master/dhpython/build/base.py?ref_type=heads#L302

But in unpack_wheel() in build/plugin_pyproject.py there isn't doing a 
check if the call of wheel = Path(self.built_wheel(context, args)) could 
be ever successful. It is assumed there is a wheel found.

https://salsa.debian.org/python-team/tools/dh-python/-/blob/master/dhpython/build/plugin_pyproject.py?ref_type=heads#L166

So I think this needs a better catching if no wheels where build or 
found. I did hack for now this, but probably it's better to raise the 
Exception in build/base.py already?

> $ git diff
> diff --git a/dhpython/build/plugin_pyproject.py b/dhpython/build/plugin_pyproject.py
> index 314f3c4..1791aa7 100644
> --- a/dhpython/build/plugin_pyproject.py
> +++ b/dhpython/build/plugin_pyproject.py
> @@ -163,16 +163,19 @@ class BuildSystem(Base):
>              script_kind='posix',
>          )
>  
> -        wheel = Path(self.built_wheel(context, args))
> -        if wheel.name.startswith('UNKNOWN'):
> -            raise Exception(f'UNKNOWN wheel found: {wheel.name}. Does '
> -                            'pyproject.toml specify a build-backend?')
> -        with WheelFile.open(wheel) as source:
> -            install(
> -                source=source,
> -                destination=destination,
> -                additional_metadata={},
> -            )
> +        if self.built_wheel(context, args) is not None:
> +            wheel = Path(self.built_wheel(context, args))
> +            if wheel.name.startswith('UNKNOWN'):
> +                raise Exception(f'UNKNOWN wheel found: {wheel.name}. Does '
> +                                'pyproject.toml specify a build-backend?')
> +            with WheelFile.open(wheel) as source:
> +                install(
> +                    source=source,
> +                    destination=destination,
> +                    additional_metadata={},
> +                )
> +        else:
> +            raise Exception("No wheel could be found!")
>  
>      def install(self, context, args):
>          log.info('Copying package built for %s to destdir',

But this is only a fallout because no wheel was built.
I'd love to get some ideas or solutions so the wheel for this poetry 
based package can be build successfully by dh-python. Maybe we did 
simply forget (or upstream) to add some further build dependency?

The d/control file is visible here:

https://salsa.debian.org/kathara/python-asyncmy/-/blob/debian/master/debian/control?ref_type=heads

-- 
Regards
Carsten

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Re: Issues building the package 'python-asyncmy' Carsten Schoenert <c.schoenert@t-online.de> - 2024-10-11 13:30 +0200

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