RuntimeError: dictionary changed size during iteration

[lynx-r1]

I got this error:

    379         info = TiffImagePlugin.ImageFileDirectory(head)
    380         info.load(file)
--> 381         for key, value in list(info.items()):
    382             exif[key] = fixup(value)
    383         # get exif extension

/home/user/.virtualenvs/myproj/lib/python3.2/_abcoll.py in __iter__(self)
    431 
    432     def **iter**(self):
--> 433         for key in self._mapping:
    434             yield (key, self._mapping[key])
    435 

RuntimeError: dictionary changed size during iteration

When execute this code:
from sorl.thumbnail import get_thumbnail; im = get_thumbnail('/home/user/webapps/myproj/yourpics/media/users/user/images/after rain.jpg', '32x43')

[aclark4life]

Any idea why?

[lynx-r1]

When i commented line 236 del self.tagdata[tag] in file PIL/TiffImagePlugin.py error disappeared.

[aclark4life]

OK…