Linux

Running Puddletag on Linux distributions with limited Python 2 support

13 May 2020 By Avinash Meetoo 2 Comments

I am a big fan of Puddletag, an audio tag editor for Linux similar to the Mp3tag Windows program. As seen above, Puddletag uses a spreadsheet-like layout which makes it quite unique in the Linux world and matches 100% with how I like tagging to be. Puddletag and I are on the same wavelength and I have been using it for some years now to curate my extensive music collection.

Unfortunately, Puddletag was written in Python 2 and relies on a number of Python 2 libraries. When I upgraded to Fedora Linux 32 a few days ago, I lost a number of those libraries as well as Puddletag (as Python 2 reached its end of life (EOL) on 1st January 2020).

Fortunately, the Linux community came to the rescue and created a corresponding AppImage which works on all new Linux distributions like Fedora 32 or Ubuntu 20.04. Get the AppImage here courtesy of Patsim and have fun!

I’ve tested it in Fedora Linux 32 and it works great!

Libreoffice with Flatpak: Adding dictionaries for other languages

9 May 2020 By Avinash Meetoo Leave a Comment

I generally write in either English, French or Mauritian Kreol.

I also use Libreoffice when I need a word processor or a spreadsheet (or, even, sometimes, a drawing software). Lately, I have discovered Flatpak (“The Future of Apps on Linux”) and Flathub (“An App Store for Linux”) and I am sold. Installing the latest version of Libreoffice from Flathub using Flatpak is a simple:

$ flatpak install flathub org.libreoffice.LibreOffice

I have noticed though that this command tends to only install the English dictionaries for spellchecking. I didn’t know how to install more dictionaries to Libreoffice so I asked on the official Flathub forum. And, fortunately, someone from the community pointed me towards the solution. The idea is to get some information about the Libreoffice installation:

$ flatpak info org.libreoffice.LibreOffice

LibreOffice - The LibreOffice productivity suite

ID: org.libreoffice.LibreOffice
Ref: app/org.libreoffice.LibreOffice/x86_64/stable
Arch: x86_64
Branch: stable
Version: 6.4.3.2
License: MPL-2.0
Origin: flathub
Collection: org.flathub.Stable
Installation: system
Installed: 686.0MB
Runtime: org.freedesktop.Platform/x86_64/19.08
Sdk: org.freedesktop.Sdk/x86_64/19.08

Commit: ddcb114395acb30f633a06fd065598ace0fbe4330c49a784a50911b0222f5f95
Parent: fa891c405f685f7859e2bb623b29db5cdb3e9e1d80d8c31f30a5d21edcc9a3eb
Subject: Update to libreoffice-6.4.3.2 (5a34256e) Date: 2020-04-16 18:32:28 +0000

Notice that the runtime is org.freedesktop.Platform/x86_64/19.08 which implies that org.freedesktop.Platform.Locale/x86_64/19.08 contains all the dictionaries. But, as pointed out by stbergmann in the forum,

The *.Locale extensions are special, in that flatpak by default only downloads that part of such an extension that matches the users current system locale, while the –reinstall hack unconditionally downloads all of it. There obviously needs to be usability improvements here, as this appears to be a common issue for users.

And this is the –reinstall hack he is talking about:

$ flatpak install --reinstall flathub org.freedesktop.Platform.Locale/x86_64/19.08

and, after a few seconds, the dictionary issue is cured. Now, in addition to English, you have French plus all the other languages. Enjoy :-)

Be amazed: Markdown and LaTeX in an HTML document

18 February 2020 By Avinash Meetoo Leave a Comment

Create a new HTML file (e.g. maths.html) and put the following content in it:

<!DOCTYPE html><script src="https://cdn.jsdelivr.net/npm/texme@0.7.0"></script><textarea>

# Euler's Identity

In mathematics, **Euler's identity** is the equality
$$ e^{i \pi} + 1 = 0. $$

## Explanation

Euler's identity is a special case of Euler's formula from complex
analysis, which states that for any real number $ x $,
$$ e^{ix} = \cos x + i \sin x. $$

As you can see, only the first line is HTML and it basically loads a Javascript library called TeXMe and creates a textarea.

The remaining text is Markdown (which is a simple text-based markup). For example, in Markdown, # means header level 1, ## means level 2, ** means strong emphasis (aka bold).

The remaining text also contains LaTeX, more specifically mathematical formulas.

Open maths.html in Chrome and marvel at the results :-)