scrobbler fails after a different application has scrobbled

Could you give us some specific terminal output?

This is what I got. Steps to reproduce:

1. Play a song in Exaile. Wait until it finishes playing.
2. Fire up another player, eg. Rythmbox, and play a song. Wait until it stops.
3. Close Rythmbox and play another song in Exaile.

Some of the output is unrelated to the scrobbler.
You'll see it scrobbles well the first song, but not the second. Also notice that it sent info from my previous session. (Songs that didn't get scrobbled last time). I replaced my username and a couple of md5sums I found in the output for privacy reasons.

INFO : Playing file:///home/pablo/Musica/FILE.ogg
/usr/lib64/python2.6/urllib.py:1223: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
  res = map(safe_map.__getitem__, s)
Exception in thread Thread-9:
Traceback (most recent call last):
  File "/usr/lib64/python2.6/threading.py", line 525, in __bootstrap_inner
    self.run()
  File "/usr/lib64/python2.6/threading.py", line 477, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/share/exaile/plugins/lyricsviewer/__init__.py", line 99, in get_lyrics
    lyr, source, url = self.exaile.lyrics.find_lyrics(track)
  File "/usr/lib/python2.6/site-packages/exaile/xl/lyrics.py", line 161, in find_lyrics
    (lyrics, source, url) = method.find_lyrics(track)
  File "/usr/share/exaile/plugins/lyricwiki/__init__.py", line 45, in find_lyrics
    artist = urllib.quote(artist.replace(' ','_'))
  File "/usr/lib64/python2.6/urllib.py", line 1223, in quote
    res = map(safe_map.__getitem__, s)
KeyError: u'\xe1'

INFO : Attempting to submit "Now Playing" information to AudioScrobbler...
INFO : Submitted "Now Playing" successfully to AudioScrobbler
Exception in thread Thread-11:
Traceback (most recent call last):
  File "/usr/lib64/python2.6/threading.py", line 525, in __bootstrap_inner
    self.run()
  File "/usr/lib64/python2.6/threading.py", line 477, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/share/exaile/plugins/lyricsviewer/__init__.py", line 99, in get_lyrics
    lyr, source, url = self.exaile.lyrics.find_lyrics(track)
  File "/usr/lib/python2.6/site-packages/exaile/xl/lyrics.py", line 161, in find_lyrics
    (lyrics, source, url) = method.find_lyrics(track)
  File "/usr/share/exaile/plugins/lyricwiki/__init__.py", line 45, in find_lyrics
    artist = urllib.quote(artist.replace(' ','_'))
  File "/usr/lib64/python2.6/urllib.py", line 1223, in quote
    res = map(safe_map.__getitem__, s)
KeyError: u'\xe1'

INFO : AudioScrobbler OK: o%5B1%5D=P&o%5B3%5D=P&b%5B0%5D=The+Only+Thing+I+Ever+Wanted&a%5B0%5D=Psapp&l%5B2%5D=159&b%5B2%5D=Kill+Bill%3A+Vol.+1&a%5B2%5D=Nancy+Sinatra&n%5B3%5D=2&r%5B0%5D=&l%5B0%5D=328&n%5B1%5D=2&r%5B3%5D=&i%5B0%5D=1275254109&m%5B2%5D=&t%5B2%5D=Bang+Bang+%28My+Baby+Shot+Me+Down%29&i%5B2%5D=1275254676&m%5B0%5D=&t%5B0%5D=Hill+of+Our+Home&a%5B3%5D=Fito+P%C3%A1ez&o%5B2%5D=P&b%5B1%5D=Circo+Beat&o%5B0%5D=P&n%5B0%5D=7&a%5B1%5D=Fito+P%C3%A1ez&l%5B3%5D=223&b%5B3%5D=Circo+Beat&n%5B2%5D=1&r%5B1%5D=&l%5B1%5D=223&i%5B3%5D=1275255802&r%5B2%5D=&i%5B1%5D=1275254451&t%5B3%5D=Mariposa+tecknicolor&m%5B3%5D=&s=MD5SUM&t%5B1%5D=Mariposa+tecknicolor&m%5B1%5D=...

Should be fixed with r4365, please confirm.