UnicodeDecodeError when I try to put image data to response
I get the image (png) data from db, then I got a UnicodeDecodeError
o = self.resp.out
pic=QuickView.get_by_key_name(hash)
h['Content-Type'] = 'image/' + img_type
o.write(pic.data)
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04-30 10:52PM 05.508
URL "/pic/quickview/FB7B82C8D4_PRu5nBT4" is dispatched to:
PicController#quickview
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key of img:FB7B82C8D4_PRu5nBT4
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png
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Traceback (most recent call last):
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File "/base/python_dist/lib/python2.5/wsgiref/handlers.py", line 92,
in run
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self.result = application(self.environ, self.start_response)
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File "/base/python_lib/versions/1/google/appengine/ext/webapp/
__init__.py", line 521, in __call__
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response.wsgi_write(start_response)
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File "/base/python_lib/versions/1/google/appengine/ext/webapp/
__init__.py", line 241, in wsgi_write
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body = self.out.getvalue()
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File "/base/python_dist/lib/python2.5/StringIO.py", line 270, in
getvalue
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self.buf += ''.join(self.buflist)
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UnicodeDecodeError: 'ascii' codec can't decode byte 0x89 in position
0: ordinal not in range(128)
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