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Bug 1738011 - lnst depends on Python 2
Summary: lnst depends on Python 2
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: lnst
Version: 31
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Ondrej Lichtner
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F31_PY2REMOVAL
TreeView+ depends on / blocked
 
Reported: 2019-08-06 12:29 UTC by Lumír Balhar
Modified: 2019-09-04 03:11 UTC (History)
4 users (show)

Fixed In Version: lnst-15-1.fc30 lnst-15-3.fc30
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-09-04 03:11:31 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Lumír Balhar 2019-08-06 12:29:53 UTC 
Python 2.7 will reach end-of-life in January 2020, over 9 years after it was released. This falls within the Fedora 31 lifetime.
Packages that depend on Python 2 are being switched to Python 3 or removed from Fedora: https://fedoraproject.org/wiki/Changes/F31_Mass_Python_2_Package_Removal#Information_on_Remaining_Packages
Python 2 will be retired in Fedora 32: https://fedoraproject.org/wiki/Changes/RetirePython2

To help planning, we'd like to know the plans for lnst's future. Specifically:


- What is the reason for the Python2 dependency? (Is it software written in Python, or does it just provide Python bindings, or use Python in the build system or test runner?) 

- What are the upstream/community plans/timelines regarding Python 3?

- What is the guidance for porting to Python 3? (Assuming that there is someone who generally knows how to port to Python 3, but doesn't know anything about the particular package, what are the next steps to take?)


This bug is filed semi-automatically, and might not have all the context specific to lnst.
If you need anything from us, or something is unclear, please mention it here.

Thank you.
Comment 1 Ondrej Lichtner 2019-08-08 07:42:32 UTC 
Hello,

in upstream we recently managed to port lnst to python3 but haven't gotten to updating the downstream package yet. I think now that we've tested it a bit, we can safely do that so I'll put that on my plan for next week. I think that answers all 3 of the questions, if not please let me know.

Thanks for the notification,
-Ondrej
Comment 2 Ben Cotton 2019-08-13 16:56:08 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle.
Changing version to '31'.
Comment 3 Ben Cotton 2019-08-13 17:33:51 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 31 development cycle.
Changing version to 31.
Comment 4 Lumír Balhar 2019-08-15 07:13:09 UTC 
The current plan is to remove packages with dependency on Python 2 from Fedora 32 in the middle of November 2019. If you want to keep your package in Fedora after that date and you cannot port it to Python 3 yet, you need to request a FESCo exception for the package and all its Python 2 dependencies (even transitive) [1]. If you don't want to maintain it anymore, and nothing in Fedora uses it, you can retire it or just remove the Python 2 part from it (subpackage, module, bindings, etc.).

If you're considering filing the exception request, let us know. We can help (for example, we can help find all the dependencies).

[1] https://fedoraproject.org/wiki/Changes/RetirePython2#FESCo_exceptions
Comment 5 Fedora Update System 2019-08-15 14:04:42 UTC 
FEDORA-2019-8b6d8214f8 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-8b6d8214f8
Comment 6 Ondrej Lichtner 2019-08-15 14:10:22 UTC 
Created two new releases in the LNST upstream repository and corresponding updates to the F30 packages:

* v14 - contains minor framework and recipe bug fixes since v13
* v15 - Python3 ported v14 release

I've done a couple of tests on VMs, we might do a couple more in beaker, when the packages hit repos I'll mark this bug as resolved.

-Ondrej
Comment 7 Fedora Update System 2019-08-16 19:50:48 UTC 
lnst-15-1.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-8b6d8214f8
Comment 8 Fedora Update System 2019-08-24 01:03:13 UTC 
lnst-15-1.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Lumír Balhar 2019-08-26 13:08:57 UTC 
Unfortunately, it seems that lnst-recipes still requires Python 2: https://koji.fedoraproject.org/koji/rpminfo?rpmID=18757228

It's probably caused by the fact that some scripts have python2 in their shebang lines and therefore dependency on python2 is automatically generated.

$ grep -iIrn "python2" lnst-15/
lnst-15/lnst/Common/SecureSocket.py:37:# to support both Python2.6 and 2.7, use following workaround to count
lnst-15/recipes/smoke/generate-recipes.py:1:#! /usr/bin/env python2
lnst-15/misc/recipe_conv.py:1:#!/usr/bin/env python2

Could you please take a look at that?
Comment 10 Fedora Update System 2019-08-26 15:00:29 UTC 
FEDORA-2019-2a50d22d8c has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-2a50d22d8c
Comment 11 Ondrej Lichtner 2019-08-26 15:01:52 UTC 
Thanks, didn't notice that, ported the generate-recipes.py to python3 in upstream and submitted the update. The other script isn't included in any rpms so that shouldn't be an issue.
Comment 12 Fedora Update System 2019-08-27 18:21:53 UTC 
lnst-15-3.fc30 has been pushed to the Fedora 30 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2019-2a50d22d8c
Comment 13 Fedora Update System 2019-09-04 03:11:31 UTC 
lnst-15-3.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.
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