在python中使用以下代码时，你能帮我解决这个TypeError吗？
from collections import OrderedDict
from PIL import Image
img = 'image_0024.jpg'
imgin = Image.open(img)
imgin = imgin.convert('RGB')
resultado = OrderedDict()
resultado[imgin] = 0
这会产生一个TypeError，你能解释一下这个OrderedDict的问题是什么吗？
TypeError Traceback (most recent call last)
<ipython-input-5-5a96d484923f> in <module>()
7
8 resultado = OrderedDict()
----> 9 resultado[imgin] = 0
10
11 print resultado
/home/drueda/anaconda/lib/python2.7/collections.pyc in __setitem__(self, key, value, dict_setitem)
61 # Setting a new item creates a new link at the end of the linked list,
62 # and the inherited dictionary is updated with the new key/value pair.
---> 63 if key not in self:
64 root = self.__root
65 last = root[0]
TypeError: unhashable instance