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The noDRM fork of (https://github.com/apprenticeharper/DeDRM_tools) has been taken down (DCMA). noDRM may have gone too far. Shouldn't the package be moved back to the original version, which is pretty stable?

@build2stone: Thanks for the heads-up. The package is now using the maintained fork.

Since the original version (https://github.com/apprenticeharper/DeDRM_tools) is no longer maintained, might I suggest switching to this fork: https://github.com/noDRM/DeDRM_tools

According to the readme of the original project, the author will also be using that fork from now on.

@gnudoc No undue criticism taken! If it confuses you it will confuse other people, too. And fixing the docs is the least that can be done.

@t-8ch Thank you very much. My message wasn't meant as any sort of criticism of the package, merely as a pointer for any other naive user like me, who might be scratching their head trying to get this to work without thinking to immediately look at the package's dependencies. Many thanks for your work.

@gnudoc: python-pycryptodome is already listed as optdepend. Not all formats require it which is why it is not listed as a hard dependency. I'll try to improve the optdepend messages for the next version of the package.

As far as I can tell, python-pycryptodome is required for this to work with DRM'd kindle files. Without this, the DRM removal silently fails with:

File "calibre_plugins.dedrm.ion", line 33, in <module>                                                                                                                                                                                    
from Crypto.Cipher import AES                                                                                                                                                                                                           
ModuleNotFoundError: No module named 'Crypto'

in the logfile if Calibre is run in debug mode.

This was tested with azw3 files belonging to purchased ebooks. The files were downloaded from the Amazon website (Manage Your Content And Devices, Download & Transfer via USB), and the plugin was given the serial number of the Device which the website had prepared the files for. Works exactly as expected once python-pycryptodome is installed.

works perfect now! thanks...

@tom: Please try again

build fails:

makepkg ==> Erstelle Paket: calibre-plugin-dedrm 7.2.1-1 (Sa 06 Nov 2021 11:27:18 CET) ==> Prüfe Laufzeit-Abhängigkeiten... ==> Prüfe Buildtime-Abhängigkeiten... ==> Empfange Quellen... -> DeDRM_tools-7.2.1.tar.gz gefunden ==> Überprüfe source Dateien mit sha256sums... DeDRM_tools-7.2.1.tar.gz ... Erfolg ==> Entpacke Quellen... -> Entpacke DeDRM_tools-7.2.1.tar.gz mit bsdtar ==> Beginne prepare()... ==> Entferne existierendes $pkgdir/ Verzeichnis... ==> Beginne build()... Archive: alfcrypto_src.zip caution: filename not matched: * ==> FEHLER: Ein Fehler geschah in build(). Breche ab...