Bug 1314043

Hello Ricky,

Do you need any help adding Python 3 support to the RPM?

If you need more instructions, a [guide] for porting Python-based RPMs is available.

[guide] http://python-rpm-porting.readthedocs.org/en/latest/index.html

This bug appears to have been reported against 'rawhide' during the Fedora 25 development cycle.
Changing version to '25'.

Created attachment 1191466 [details]
pure python3 spec patch

The new koji build 2.0.7-1.fc26 Requires all the python2 and python3 stuff to install, and includes both dnsyo (for python2) and python3-dnsyo. Is this what we want? I'd think we'd want either just python3 in this one, or separate python2 & python3 subpackages, from vague impressions I've gotten of the packages I've installed and updated. But python certainly isn't my thing, much less the multiversioning of it, so I could be very wrong. If you do want just the python3, though, here's a spec patch for that (not that it isn't obvious & simple, if this were one's goal).

After a quick scan of https://fedoraproject.org/wiki/Packaging:Python , it looks like the following apply to building python packages:

"Must: If you build for more than one python runtime you must use the %python_provide macro.
"Must: If you build for a single python runtime you must add %python_provide python-$module so that the current default python is provided from the unversioned python package."

And the %python_provide is what give you the python2-foo & python3-foo provides for the subpackages. I think the page just kind of assumes that it's obvious you have to provide subpackages, to the point that they don't even come right out and say so. Or maybe I'm reading too much into it.

Anyway, it looks as though yes, it should either be python3-only 'dnsyo', or build two subpackages, 'python2-dnsyo' & 'python3-dnsyo'.

Hello,
The general idea is:
- If the package has a Python library that people can import from their code, it's better to include both the Python2 and the Python3 version. That way people aren't forced to switch to py3 immediately, but have some transition period.
- If the package is just used for the script in /usr/bin, you can just switch it to py3 entirely.

The Reviewer checklist in the guidelines is targetting libraries (without saying so – that's a bug in the guidelines – sorry!)

(In reply to Petr Viktorin from comment #5)
> - If the package is just used for the script in /usr/bin, you can just
> switch it to py3 entirely.

I suppose I can do that, but then I have to maintain two separate specfiles for the epel vs fedora branches, right? So it might be easier to just keep both in the specfile for now so it can keep being shared/merged cleanly between the branches.

I'll take a closer look at this later tonight.

Hello Ricky, how is it going? Do you need some help?

Hi Ricky,

dnsyo still requires both Python stacks:

$ dnf repoquery --disablerepo=* --enablerepo=rawhide --requires dnsyo
/usr/bin/python
/usr/bin/python3
PyYAML
python(abi) = 2.7
python(abi) = 3.6
python-dns
python-requests
python3-PyYAML
python3-dns
python3-requests


I have prepared a Pagure PR to switch dnsyo to Python 3 in Fedora only:

https://src.fedoraproject.org/rpms/dnsyo/pull-request/1

I would ask you to have a look at it and comment or merge at will. Details and scratch builds are in the PR description.

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dnsyo-2.0.7-4.fc27.noarch still requires both python(abi) 2.7 & 3.6, /usr/bin/python & /usr/bin/python3, etc.

This message is a reminder that Fedora 27 is nearing its end of life.
On 2018-Nov-30  Fedora will stop maintaining and issuing updates for
Fedora 27. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora  'version' of '27'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 27 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Persists in F29.

This was retired. But not on F29, so keeping it open.

If this isn't fixed in F29, there's no harm.