After launching an external application, subprocess provides access to the stdin, stdout, and stderr streams used by the application. The MusicPlayer should also provide a playback API to stop and restart a song and to terminate playback if a user wants to start a new song before an old one finishes. Python provides the subprocess module to launch and control external applications. External applications run in their own process separate from Python’s process. Python does not itself play music, so the MusicPlayer class developed here needs to use an external application to do the job.
#Play sounds python driver#
My UI is not a UI at all, it's just a terminal-based driver that uses the class, so it is very simple. My article is not about making a nice player application, it is about building a reusable Python class that uses subprocess to launch and control an external process. These combine nicely to produce a player with a GUI. Most of these use high-level modules like pygame (to play music) and tkinter (to provide a UI). Please note: There are lots of great Python music player projects that you can find on the web. I decided that a reusable MusicPlayer class would be a worthy topic. So my challenge was to think of a project that readers might find interesting. I prefer to write an engaging story about Python’s subprocess module (that’s a laugh) rather than just present a few facts that can be found elsewhere. I enjoy writing, and this felt like a topic that could be interesting to write about.īut I know that reading about syntax and APIs is not very much fun.
I recently needed to launch and control an application from Python, so I had to learn about the subprocess module.
#Play sounds python code#
The Python code and mpg123 should run on Windows, but this was not attempted by me. Code was developed using Python 3.9 on an Apple M1 MacBook running Monterey 12.1. A terminal-based driver is used to demonstrate the class. A MusicPlayer Class is developed that launches and controls the audio player application mpg123 to play mp3 files on your system. Now, add music location in the given function to play some music in the application.TL DR: Read this to learn a few things (but not close to everything) about Python’s subprocess module. If we run the above code, it will display a window with a button in it. # Create an instance of tkinter frame or windowīg = ImageTk.PhotoImage(file="music.jpg")ī1 = Button(win, text="Play Music", command=play_sound) Initialize Pygame mixture by using ()Ĭreate a button widget which is used further to play the music.ĭefine a function play_sound() and load the music by specifying the location of the file in (filename).Īdd () to play the music.
#Play sounds python install#
You can install pygame using pip install pygame command. Make sure that Pygame is installed in your local machine. To create an application that plays some sound on clicking a button, we have to follow these steps, Using music sub-module, you can stream mp3, ogg, and other variety of sounds. It provides a mixture to handle all sound related activities.
Pygame is one of the python modules which is used to design and build video games and music. Python has many inbuilt libraries and modules that are used for building various application interfaces and components.
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