cache/quetzalcoatl is a directory

[duganchen]

Just got this massive string of (repeated) errors when starting up the Experimental branch for the first time:

$ ./quetzalcoatl.py
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2303, in __art_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2287, in __icon_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2303, in __art_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2287, in __icon_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2303, in __art_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
Traceback (most recent call last):
File "./quetzalcoatl.py", line 2287, in __icon_downloaded
filepath = self.__image_downloaded(reply)
File "./quetzalcoatl.py", line 2314, in __image_downloaded
image = open(image_path, 'wb')
IOError: [Errno 21] Is a directory: '/home/dugan/.cache/quetzalcoatl'
^CTraceback (most recent call last):
File "./quetzalcoatl.py", line 480, in viewportEvent
def viewportEvent(self, event):
KeyboardInterrupt

[duganchen]

I haven't looked into this yet, but a possible cause is that I had two copies of the same album, one in FLAC format and one in OGG format.