I am getting above error. I looked at the code a little more and saw
this
        self.file = file
        self.length = length
        self._consumed = 0
        if hasattr(self.file, 'seek'):
            self.seek = self._seek

So seems like "self.file" doesn't have attribute 'seek' as expected.
Any one has any idea what could be causing this? I am attaching the
full trace.



2009-08-18 14:59:48.192 INFO  [quiz2.model] Failed to fetch dimension
0 for modification
Error - <type 'exceptions.AttributeError'>: 'LimitedLengthFile' object
has no attribute 'seek'
URL: http://174.37.50.132/images/receive_upload
File '/usr/lib/python2.5/site-packages/Paste-1.7.3dev_r7990-py2.5.egg/
paste/exceptions/errormiddleware.py', line 144 in __call__
 app_iter = self.application(environ, sr_checker)
File '/usr/lib/python2.5/site-packages/Pylons-0.9.6.2-py2.5.egg/pylons/
wsgiapp.py', line 314 in __call__
 return self.app(environ, start_response)
File '/usr/lib/python2.5/site-packages/Routes-1.10.1-py2.5.egg/routes/
middleware.py', line 62 in __call__
 elif is_form_post(environ) and '_method' in req.POST:
File '/usr/lib/python2.5/site-packages/Paste-1.7.3dev_r7990-py2.5.egg/
paste/wsgiwrappers.py', line 213 in POST
 params = self._POST()
File '/usr/lib/python2.5/site-packages/Paste-1.7.3dev_r7990-py2.5.egg/
paste/wsgiwrappers.py', line 195 in _POST
 return parse_formvars(self.environ, include_get_vars=False)
File '/usr/lib/python2.5/site-packages/Paste-1.7.3dev_r7990-py2.5.egg/
paste/request.py', line 174 in parse_formvars
 keep_blank_values=1)
File '/usr/lib64/python2.5/cgi.py', line 534 in __init__
 self.read_multi(environ, keep_blank_values, strict_parsing)
File '/usr/lib64/python2.5/cgi.py', line 657 in read_multi
 headers = rfc822.Message(self.fp)
File '/usr/lib64/python2.5/rfc822.py', line 104 in __init__
 self.readheaders()
File '/usr/lib64/python2.5/rfc822.py', line 188 in readheaders
 self.fp.seek(startofline)
AttributeError: 'LimitedLengthFile' object has no attribute 'seek'


CGI Variables
-------------
 CONTENT_LENGTH: '35719'
 CONTENT_TYPE: 'multipart/form-data;
boundary=---------------------------7d9e6209070a'
 HTTP_ACCEPT: 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/x-ms-application, application/vnd.ms-xpsdocument,
application/xaml+xml, application/x-ms-xbap, application/x-shockwave-
flash, application/x-silverlight, application/vnd.ms-excel,
application/vnd.ms-powerpoint, application/msword, */*'
 HTTP_ACCEPT_ENCODING: 'gzip, deflate'
 HTTP_ACCEPT_LANGUAGE: 'en-us'
 HTTP_CACHE_CONTROL: 'no-cache'
 HTTP_CONNECTION: 'Keep-Alive'
 HTTP_HOST: '174.37.50.132'
 HTTP_REFERER: 'http://apps.facebook.com/quizapps/questions_entry/
render/2313297'
 HTTP_UA_CPU: 'x86'
 HTTP_USER_AGENT: 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0;
SIMBAR={4121AA87-8E3D-427A-9533-7F87CA8D832E}; SLCC1; .NET CLR
2.0.50727; Media Center PC 5.0; InfoPath.2; OfficeLiveConnector.1.3;
OfficeLivePatch.0.0; .NET CLR 3.5.30729; .NET CLR 3.0.30618)'
 PATH_INFO: '/receive_upload'
 REMOTE_ADDR: '10.9.89.30'
 REQUEST_METHOD: 'POST'
 SCRIPT_NAME: '/images'
 SERVER_NAME: '0.0.0.0'
 SERVER_PORT: '9096'
 SERVER_PROTOCOL: 'HTTP/1.1'


WSGI Variables
--------------
 application: <pylons.wsgiapp.PylonsApp object at 0x1a0b410>
 paste.httpserver.thread_pool: <paste.httpserver.ThreadPool object at
0xbc61d0>
 paste.recursive.forward: <paste.recursive.Forwarder from /images>
 paste.recursive.include: <paste.recursive.Includer from /images>
 paste.recursive.include_app_iter: <paste.recursive.IncluderAppIter
from /images>
 paste.recursive.script_name: '/images'
 paste.registry: <paste.registry.Registry object at 0x430fd50>
 paste.throw_errors: True
 pylons.environ_config: {'session': None, 'cache': None}
 pylons.error_call: True
 wsgi process: 'Multithreaded'
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