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The available tags depend on the file type. The tags can be accessed and modified via a dictionary-like interface. Once we created an instance of the appropriate FileType class, either directly or via the File function, we can access the tags of an audio file via the tags attribute, which is the appropriate instance of a mutagen.Tag child class (this is done because tags are managed differently in the different audio containers: in FLAC files, for example, tags are stored as vorbis comments): > from mutagen.flac import FLAC The FLACNoHeaderError exception its an extension of the Error class, which in its turn extends MutagenError, therefore we can catch the latter if we need to handle errors in a more generic way. : '01_an_ancient_sign_of_coming_storm.mp3' is not a valid FLAC file As you can see, an exception would be raised: > a = FLAC('01_an_ancient_sign_of_the_coming_storm.mp3') What if we try to instantiate the wrong FileType class for a file? Imagine we try to create an instance of the FLAC class passing an mp3 audio file as argument. In this case, for example, we could have run: > from mutagen.flac import FLAC If we know the filetype of the audio file beforehand, we can instantiate the appropriate class directly. This is the object we will interact with the most: > type(a) In this case, for example, it returns an instance of the Flac class. What this function does? It tries to guess the type of the file which is passed as argument by examining its first 128 bytes, its extension, and the presence of already existing tags, and tries to open it, returning an instance of the appropriate class which extends the generic FileType. In the example above, to open the file we used the File function included in the mutagen module. > a = mutagen.File('we_disintegrate.flac') The song is we_disintegrate.flac by Nevermore: > import mutagen

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The first thing we want to do, of course, is to import the module, and “open” a file, which for the sake of this example, is in the FLAC format (FLAC stands for Free Lossless Audio Codec). Once mutagen is installed, we can start working with it.

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To install mutagen using pip only for our user, we should run: $ pip install -user mutagen Opening an audio file One advantage of this method is that we will always obtain the latest stable version of the software, which we can install without the need of privilege escalation. The alternative, universal, method we can use to install mutagen is by using pip: the python package manager. In this case the command we need to run is: $ sudo pacman -Sy python-mutagen

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If we are running on Archlinux, instead, we can use pacman to install software packages. On Debian and its many derivatives, instead, we use apt: $ sudo apt install python3-mutagen On Fedora, for example, the package manager is called dnf, and the command we should run to install mutagen is the following: $ sudo dnf install python3-mutagen The software is free and open source, and it is included in the official repositories of the most commonly used Linux distributions, such as Fedora, Debian and ArchLinux, therefore we can install it using the package managers of those systems. Installing the mutagen Python module is quite simple. $ – requires given linux-commands to be executed as a regular non-privileged user # – requires given linux-commands to be executed with root privileges either directly as a root user or by use of sudo command Requirements, Conventions or Software Version Usedīasic knowledge of Python and object oriented programming Software requirements and conventions used Software Requirements and Linux Command Line Conventions Category How to set, change and delete music ( mp3, flac etc.

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How to install the mutagen python3 module.In this tutorial we learn how to use it directly. Most of those applications are written in Python and use the “mutagen” module at their core. Many graphical and command line applications exist on Linux to manage tags for audio files, like Picard or Quodlibet. Tagging music files is a way of keeping a music library well organized and let us search for songs on the base of Artists, albums, genre and other parameters.