Quick, take your one liner, have it traverse an entire directory tree
converting all the wavs (regardless of capitalization) to mp3s, oggs and flac,
sorting all 4 into their own directory trees.
For me I just need to change my small script into a function, wrap it
inside os.walk() and have calls to os.makedirs() and shutil.copy() to do all
the work. Several more minutes of work and I can add in checks for the same
files with different names, prompt the user to pick a name to use, convert
that one and delete the rest. Then for my final trick I can wrap it all up as
a library, still retaining its ability to run as a stand alone script, and
import it into other Python scripts.