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Old 07-03-2019, 08:14 AM   #1
hopeful_franklin
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Question Install Python 3.6+ ?

Hi,

I just enter the world of mobile read, because I want a simple tool for me and I thought that the kobo clara hd should work for this thing. I read that we can do a lot on it, that python and tkinter works, etc.

But I only found python 2.7 for clara hd. I search for more than 3 days, but I'm lost between versions of the firmware, good python version and how to do it.

So my question:
- Does it exist a tutorial explaining how to install python 3+ on kobo Clara hd ? I didn't find it.
- It is possible to upgrade python by myself or I have to wait until release from master in hack on this forum ?

If you have anything to say about how I format my question or if I do something wrong, just tell me, I will edit this post if so.
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Old 07-03-2019, 12:33 PM   #2
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No-one has a Py3k package, that I know of, no. And I wouldn't recommend diving into it unless you seriously know what you're doing, because cross-compiling interpreted languages is hell.

I do plan of doing that before the Python 2.7 EoL (01/01/2020), but not right this minute .

Did you have something specific in mind that *explicitly* requires Py3k?
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Old 07-03-2019, 12:45 PM   #3
hopeful_franklin
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Yes I do have something specific in mind: https://pythonclock.org/

Don't code in 2.x, don't like it, don't want to...

Why are you talking about cross-compiling ?
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Old 07-03-2019, 01:11 PM   #4
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Because the Kobo HW runs on ARM? And my masochistic tendencies are aimed at cross-compiling, not qemu or chroot shenanigans ;p.

EDIT: Also, no, I don't ship tk with my Python packages (and neither does Kobo), so, no tkinter .

Last edited by NiLuJe; 07-03-2019 at 01:21 PM.
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Old 07-03-2019, 09:42 PM   #5
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Quote:
Originally Posted by NiLuJe View Post
Because the Kobo HW runs on ARM? And my masochistic tendencies are aimed at cross-compiling, not qemu or chroot shenanigans ;p.
Hey, qemu-user-static in a runc container works pretty well for running ARM binaries . Cross-compiling is a mess though. I recently spent a few hours trying to get GCC 9 + musl to cross compile properly as a static relocatable toolchain for my CI builds.

Quote:
EDIT: Also, no, I don't ship tk with my Python packages (and neither does Kobo), so, no tkinter .
And speaking of GUIs, it usually works better to make a web-based interface and either run it in the kobo browser or a separate QT app with a WebView.
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Old 07-04-2019, 04:54 AM   #6
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I only have Python 3.4 (more specifically, the Debian Jessie chroot on my Kobo has it)

https://packages.debian.org/jessie/python3

Newer Debian does not work for me (on my Kobo H2O with 2.6.x kernel) but might work on newer kernel Kobo devices.

Last edited by frostschutz; 07-04-2019 at 04:57 AM.
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Old 07-06-2019, 06:35 PM   #7
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Kobo Installer has Python 3.4.1 inside it. It's a stripped version, since the entire py standard library is a bit too much for the internal memory. There's also a link to the other libraries.

I compiled it using qemu with a debian arm image. IMHO it was not so difficult. The difficult part was to move the standard library in a separate package.

Last edited by Lucas Malor; 07-06-2019 at 06:40 PM.
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Old 07-12-2019, 01:14 AM   #8
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