Managing id tags in mp3 files with eyed3.

This is a problem I solved some time ago but after updating to the lastest library I discovered the interface has changed. Setting the tags is quite straightforward following the instructions in here: http://eyed3.nicfit.net/. It wasn't so easy for me to figure out how to attach and image to an mp3 file.
This is the solution I found:

import eyed3

audiofile = eyed3.load (fileName)
if audiofile.tag == None:
    audiofile.tag = eyed3.id3.Tag ()
    audiofile.file_info = eyed3.id3.FileInfo (fileName)


audiofile.tag.artist = artist
audiofile.tag.title = unicode (title)
audiofile.tag.genre = unicode (genre)
img_fp = open (file_path, "rb")

# The type of image, the content of the jpg file, mime type, description
audiofile.tag.images.set(eyed3.id3.frames.ImageFrame.FRONT_COVER,
                img_fp.read(), "image/jpeg", u" ")
audiofile.tag.save (filename=fileName, version=eyed3.id3.ID3_V2_3)