Miro Hrončok :fedora: :python:

Free software 👨‍💻 engineer at :redhat: Red Hat.
:fedora: ❤️ :python: #Fedora #Python maintainer, Fedora Council member, 📦 Packaging Committee, Fedora Ambassador, former Fedora 🧑‍⚖️ Engineering Steering Committee member, and contributing :python: Python Software Foundation member.
🦁 Czech Technical University and 🩷 Czech PyLadies beginners courses teacher 🧑‍🏫.
🇨🇿 Czech 👨‍🌾 villager.
Living with 2 🐺 Irish Wolfhounds and 3 🐈 ginger cats.

Fedora: https://fedoraproject.org/wiki/User:Churchyard
GitHub: https://github.com/hroncok
GitLab: https://gitlab.com/hroncok
Website: https://hroncok.cz/

Public Key

npub1c0033wg5zheres0dwux0c0ezlrfyakshc3fv55uygm56zp5z756skppr9g

NIP-05 Address

hroncok_at_floss.social@momostr.pink

Profile Code

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Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1c0033wg5zheres0dwux0c0ezlrfyakshc3fv55uygm56zp5z756skppr9g

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Published at

2026-09-25T23:08:47Z

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Last Notes

2026-08-15 14:01:42 UTC

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I got an idea :D https://spin.fedoralovespython.org/

2026-08-15 11:01:15 UTC

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Where did you finally get those?

2026-08-14 22:41:32 UTC

At Czech #Python community sprint, we are discussing a wild idea of a Python (un)conference in a #train. 3 days, roaming Czechia, talks, workshops, sleep carriages, restaurant, full train experience. PyVlakon.
Probably not viable, but super nerdy anyway.

2026-08-12 11:00:51 UTC

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Reklama na cigára 🤦

2026-07-26 09:23:43 UTC

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K tomu mě akorát napadá, že autobusáky nejsou potřeba. Stačí parkoviště pro busy a zázemí pro řidiče někde mimo a pak větší zastávka někde pro lidi blízko náměstí/nádraží.
Lidi nepotřebují 8 nástupišť.

2026-07-23 10:41:50 UTC

There I was, contemplating moving my stuff to #Codeberg, worrying about missing support for trusted publishing to PyPI.
I guess I won't :(
https://codeberg.org/Codeberg/org/pulls/1253/files
> You must not share projects that mostly consist of code written by "generative AI"-tools (including services such as Claude, OpenAI Codex).
I wonder how they are going to measure "mostly consist of".
#FreeIPA is already moving away: https://forge.fedoraproject.org/forge/forge/issues/682
#AI #LLM

2026-07-18 13:53:43 UTC

Tired: Waiting for a #Python release on the day it is scheduled and a couple of days after, so we can update it in #Fedora fast.
Wired: Watch @npub1xvu…jmp8 and @npub1txp…jlz3 release it on #EuroPython #EuroPython2026 sprints, built the JIT stencils from Hugo's fork before it is released, get the update out of the door ASAP.
https://src.fedoraproject.org/rpms/python3.15/pull-request/91

2026-07-18 13:28:39 UTC

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A lot of things you said clearly resonated with the audience. Thanks for naming them, saying them, and looking for a solution, not just venting the frustration. I was very deeply moved during your keynote, and so were others I spoke with. Thank you!
(I don't have the capacity to participate, but if you want to raise awareness, e.g. in the Czech Python community or in Fedora, I am available.)

2026-07-15 16:06:50 UTC

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I'd start with an email to devel. Change proposal would be next. But no strong opinion.

2026-07-15 14:02:45 UTC

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I am so glad you are working on this. Doing this demo so soon after Flock, you rock. Thank you! (
It's a weird sensation seeing some of my ideas come alive :D
Anyway, I agree with others that subdirectories might work better.

2025-08-12 18:32:35 UTC

#Fedora 43 is branching from Rawhide today. And we're gonna do a mass rebuild of all #Python packages with .pyc files in both Rawhide and Fedora 43 when Python 3.14.0rc2 is out.
I am really hoping this goes well. We have never done a rebuild this late :)
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/XO5QGOXBWHFG7AOGDQBG23AQDS2MDTWI/
https://discuss.python.org/t/heads-up-pyc-magic-number-change-in-3-14-0rc2/102095
https://discuss.python.org/t/early-3-14-0-rc2-and-extra-rc3/102151

2025-07-16 10:08:21 UTC

I am a principal software engineer with a decade+ Python experience. I have a masters degree in computer science.
Yet the JIT talk at #EuroPython makes me feel like an imposter. It happens to all of us.

2025-06-26 07:31:21 UTC

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I'll be there.

2025-06-07 17:01:15 UTC

When I could not come to #FlockToFedora, my teammates (@npub1e6w…0e03 and others) visited me in the hospital instead to lift my spirit. Thanks!
https://cdn.masto.host/floss/media_attachments/files/114/643/143/030/821/224/original/b210f5c99cfc86a1.jpg

2025-05-30 19:27:33 UTC

Everything seems ready for the actual mass #Python 3.14 rebuild in #Fedora Rawhide. We'll meet with @npub1e6w…0e03 and @npub1haw…qakq early next week to fire off and babysit the builds.
Fellow Fedora packagers: Now is not a good time to push breaking changes. (In the past, something special always happened during the rebuild.)

2024-08-13 23:02:55 UTC

I just retired #Python 2.7 from #Fedora Rawhide. This concludes a transition we started 10+ years ago.
https://fedoraproject.org/wiki/Changes/RetirePython2.7
https://src.fedoraproject.org/rpms/python2.7/c/3248aca6678f2b040dcab600e5f94dac2c0c5276?branch=rawhide

2024-07-06 12:13:32 UTC

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They apparently also decided to say the project is now MIT-licensed (nose was LGPL) and they fail to understand that's impossible. https://github.com/mdmintz/pynose/issues/16

2024-06-08 12:41:45 UTC

The cardboard box gang.
#CatsOfMastodon #Caturday
https://cdn.masto.host/floss/media_attachments/files/112/581/046/011/675/286/original/3dd24bbdcf4e4f40.jpg

2024-06-06 05:49:17 UTC

Spent the day with @npub1e6w…0e03 waiting for #Python 3.13b2. I found out it happened after 1 AM local time, scheduled a testing Feodra rebuild of everything and passed out around 2 AM.
Just woke up at 7 realizing test_gdb has failed due to some #Fedora-only patching in gdb and Copr (cc @npub1r8u…gfn5) happily builds "after" a failed build, so the builds were not with b2🤦‍♂️
https://bugzilla.redhat.com/2275274#c11
The bird poo on my laptop keyboard yesterday morning was definitively a sign of good fortune 😀

2024-05-24 13:39:36 UTC

It has been ~3 years since @npub16d3…4r20 proposed the "Python Packaging Guidelines overhaul" in Fedora.
https://fedoraproject.org/wiki/Changes/PythonPackagingGuidelines202x
I've noticed today that the number of #Fedora #Python packages using the RPM macros from the new guidelines is higher than that of the old ones:
$ rg %py3_build -l | wc -l
1672
$ rg %pyproject_wheel -l | wc -l
1852

2024-05-20 09:21:01 UTC

#Python 3.13 in #Fedora is now built with -03, which seems faster.
https://discussion.fedoraproject.org/t/f41-change-proposal-python-built-with-gcc-03-self-contained/112743/13
It also has the python3.13-freethreading subpackage with disabled GIL (parallelly installable).
https://peps.python.org/pep-0703/
I'm working on building the experimental JIT (enabled on runtime via PYTHON_JIT=1).
https://peps.python.org/pep-0744/
Python 3.13 is now future-complete and I encourage you to test your projects with it. It will be the default Python in Fedora 41.
https://fedoraproject.org/wiki/Changes/Python3.13

2024-05-14 17:14:06 UTC

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I wonder why is the deadsnakes build called nogil and not freethreading 🤔 We wanted to call it nogil at first as well but were told not to, so now we have 2 different names for it.