1. Forum
  2. Usenet
  3. LINUX.DEBIAN.DEVEL.MENTOR

  • python-module packaging: builtin distutils vs python3-setuptools

    From Andreas Metzler@21:1/5 to All on Sun Oct 29 06:50:01 2023
    Hello,

    I am trying to unbreak building of gpgme python bindings (#1054786).
    The build result differs/breaks when python3-setuptools is installed.

    Afaiui python3-setuptools is a newer/extended version of python's
    built-in distutil (which is scheduled for removal). If
    python3-setuptools the new code is used. dh-python recently has grown a dependency on python3-setuptools, breaking the gpgme build.

    An unchanged build would install to /usr/local. distutils seems to be
    patched to not only support --install-layout=deb but also to use it by
    default, whereas python3-setuptools supports it but does enable it by
    default. That is easily fixed, however the layout still is different:

    distutils installed[1] to
    usr/lib/python3/site-packages/gpg
    usr/lib/python3/site-packages/gpg/constants usr/lib/python3/site-packages/gpg/constants/data usr/lib/python3/site-packages/gpg/constants/data/__pycache__
    [...]
    plus a gpg-1.18.0.egg-info directly in usr/lib/python3/site-packages/
    which we shipped in dist-packages.

    python3-setuptools produces[1]
    usr/lib/python3/dist-packages/ usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg/gpg usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg/gpg/constants usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg/gpg/constants/tofu
    usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg/gpg/constants/tofu/__pycache__
    [...]
    usr/lib/python3/dist-packages/gpg-1.18.0-py3.11-linux-amd64.egg/EGG-INFO

    Looking at other Debian packages this does not look like right. However I
    have checked "python3 setup.py install --help" and tried to look at python3-setuptools documentation to find the correct knob/setting to
    switch to the other layout but just could not find it.

    TIA, cu Andreas


    [1] well, it used to. If I now "dpkg --purge --force-depends python3-setuptools" it seems to install to dist-packages.
    --
    `What a good friend you are to him, Dr. Maturin. His other friends are
    so grateful to you.'
    `I sew his ears on from time to time, sure'

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Andreas Metzler@21:1/5 to [email protected] on Sun Oct 29 07:20:01 2023
    On 2023-10-29 Andreas Metzler <[email protected]> wrote:
    [...]
    Looking at other Debian packages this does not look like right. However I have checked "python3 setup.py install --help" and tried to look at python3-setuptools documentation to find the correct knob/setting to
    switch to the other layout but just could not find it.


    Hmm, --root combined with --install-lib /usr/lib/python3/dist-packages
    might do the trick ...

    cu andreas
    --
    `What a good friend you are to him, Dr. Maturin. His other friends are
    so grateful to you.'
    `I sew his ears on from time to time, sure'

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)