External library requirements
In addition to the several built-in modules of Python, we will use the following two external modules in this project:
The pyglet library for audio manipulation
PMW (short for Python Megawidget) for the widgets that are not available in core Tkinter
The pyglet module
Pyglet is a cross-platform windowing and multimedia library for Python. It can be downloaded at https://bitbucket.org/pyglet/pyglet/wiki/Download.
Pyglet can be installed using the PIP installer by using the following command:
pip3 install pyglet
Windows users can also download and install binary packages for pyglet from http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyglet.
Pyglet needs another module called AVbin to support playback of file formats such as MP2 and MP3. AVbin can be obtained for Windows, Linux, and Mac OS X from the download section at http://avbin.github.io.
PMW Tkinter extension
We will use the PMW Tkinter extension to code some widget features that are not available in core Tkinter.
Pmw...
