…not as easy as you might think.
The most recommended package for python to do things like play sounds is pygame.
However, pygame is not available for python3.
Another recommendation I found was pyaudio, so I started exploring pyaudio. Pyaudio for python3 is not available under the Raspian wheezy distribution archives, so you can’t get with apt-get in command line.
To get pyaudio for python3, you have to get via git, and then turn on all the ports and such. As I am new to all of this, I found it quite baffling.
…and it didn’t work. so…
for the second time in a week, I had to admit defeat with the latest bleeding edge technology (even though python3 isnt that new, and nor is php5), and use an older version that I know will work. Python2 it is then, with pygame. Ouch.
Update!!!! I found a package that allows you to play mp3 files with python on a pi. To install:
sudo apt-get install mpg321
Have yet to try it, but I am excited