Runtime errors

[FilipeMaia]

Sometimes I get the following error:
Traceback (most recent call last):
File "/Users/filipe/src/owl/view2d.py", line 752, in mousePressEvent
info = self.getPixelInfo(img,ix,iy)
File "/Users/filipe/src/owl/view2d.py", line 767, in getPixelInfo
if self.loaderThread.maskData[img] == None:
File "/Users/filipe/src/owl/cache.py", line 24, in getitem
retval = self.dict.pop(key)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/collections.py", line 143, in pop
raise KeyError(key)
KeyError: 10

This was with version e7eac8f

[daurer]

duplicate of bug #7