CoverManger(ui): Exception while fetching covers

[Rocco Aliberti]

r4170

Exception in thread CoverPrefetch:
    Traceback (most recent call last):
      File "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner
        self.run()
      File "/usr/lib64/python2.6/threading.py", line 484, in run
        self.__target(*self.__args, **self.__kwargs)
      File "/home/***/exaile/xlgui/cover.py", line 197, in prefetch
        label = '{} - {}'.format(*album)
    ValueError: zero length field name in format

[Mathias Brodala (mathbr)]

Your traceback says it all: you are using Python 2.6, that format is Python 2.7. Fixed with r4174.

[Rocco Aliberti (eri.trabiccolo)]

Yeah i had noticed, and I checked the DEPS files before doing the patch. Sorry I was stingy with explanations ;)