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https://issues.apache.org/jira/browse/PYLUCENE-44?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649379#comment-16649379
]
Shangning Xu commented on PYLUCENE-44:
--------------------------------------
This is really an issue with Arch Linux. Though [Setuptools
v34.0.0|https://setuptools.readthedocs.io/en/latest/history.html#v34-0-0]
suggested devendoring {{packaging}}, the developers actually didn't complete
it. They created a package named
[{{packaging}}|https://github.com/pypa/packaging] but distributions like Ubuntu
don't install it by default, because {{pkg_resources.extern.packaging}} still
works.
The real problem is that Arch Linux takes a step forward and *complete the
devendoring*. When packing Setuptools for Arch, {{pkg_resources.extern}} is
[removed|https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/python-setuptools#n25]
both for Python 2 and 3. Then the package {{packaging}} is made a dependency
of Setuptools.
So, in other distributions e.g. Ubuntu, {{python-packaging}} must be installed
to do {{import packaging}} (in Python 2). In Arch, {{import packaging}} is the
only way.
Since I'm packing JCC for Arch, I'll fix the import downstream.
> pkg_resources.extern.packaging.version is Deprecated
> ----------------------------------------------------
>
> Key: PYLUCENE-44
> URL: https://issues.apache.org/jira/browse/PYLUCENE-44
> Project: PyLucene
> Issue Type: Bug
> Environment: Arch Linux
> Python 3.7.0
> setuptools 40.4.3
> Ant 1.10.5
> Pip 18.0
> Reporter: Shangning Xu
> Priority: Major
>
> {{pkg_resources.extern.packaging.version}} introduced in PYLUCENE-43 to
> replace {{SetupToolsVersion}} is actually deprecated *before*
> {{SetupToolsVersion}} ({{SetupToolsVersion}} is removed in setuptools
> [v39.0.0|https://setuptools.readthedocs.io/en/latest/history.html#v39-0-0],
> while {{pkg_resources.extern}} is in
> [v34.0.0|https://setuptools.readthedocs.io/en/latest/history.html#v34-0-0]).
> The correct solution is to replace
> {code:java}
> from pkg_resources.extern.packaging.version import Version
> {code}
> with
> {code:java}
> from packaging.version import Version
> {code}
> in Line 215 of {{setup.py}}. The solution can be found in the release notes
> of [setuptools
> v39.0.0|https://setuptools.readthedocs.io/en/latest/history.html#v39-0-0] and
> a [Github issue|https://github.com/anntzer/pypi2pkgbuild/issues/2].
> Maybe this setuptools drama may worth a minor version bump?
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