AttributeError: 'NoneType' object has no attribute 'decode'

[abhinav]

How to Reproduce

While doing a POST operation on /importer, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'__FORM_TOKEN': u'09e84812d43025b6c02e88a8',
 'action': u'upload',
 'import-file': FieldStorage('import-file', 'Trac Tickets(2).csv', '"ticket ","summary","reporter","owner","component","type","status","priority","milestone",\n"Previous Record - Offline record - phase 1","abhinav","abhinav","Treatment","Feature","New","High","Version 1.7",\n"Prescription","abhinav","abhinav","Treatment","Feature","New","High","Version 1.8",\n"TurboDoc+ interface Design","abhinav","abhinav","Admin","Task","New","Medium","Version 1.7",\n"Auto Patient id generation","abhinav","abhinav","Record","Feature","New","High","Version 1.7",\n"Modular Treatment Design","abhinav","abhinav","Treatment","Task","New","Medium","Version 1.7",\n"Make Dental Treatment Modular","abhinav","abhinav","Treatment","Task","New","High","Version 1.7",\n"Enhanced Prescription","abhinav","abhinav","Treatment","Feature","New","High","Version 1.9",\n"Subscription Management Enhancement","abhinav","abhinav","Subscription","Enhancement","New","High","Version 1.8"\n'),
 'sheet': u'1'}

User Agent was: Mozilla/5.0 (X11; U; Linux i686; en-US) AppleWebKit/532.2 (KHTML, like Gecko) Chrome/4.0.222.1 Safari/532.2

System Information

Trac	0.11.1
Python	2.4.3 (#1, Jan 21 2009, 01:10:13) [GCC 4.1.2 20071124 (Red Hat 4.1.2-42)]
setuptools	0.6c5
SQLite	3.3.6
pysqlite	1.1.7
Genshi	0.5.1
Pygments	1.0
Agilo	0.7.3.3-r1417-20090313
Subversion	1.5.4 (r33841)
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/Trac-0.11.1-py2.4.egg/trac/web/main.py", line 423, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/Trac-0.11.1-py2.4.egg/trac/web/main.py", line 197, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-i686/egg/talm_importer/importer.py", line 70, in process_request
  File "build/bdist.linux-i686/egg/talm_importer/importer.py", line 107, in _do_preview
  File "build/bdist.linux-i686/egg/talm_importer/importer.py", line 298, in _process
  File "build/bdist.linux-i686/egg/talm_importer/readers.py", line 34, in next
AttributeError: 'NoneType' object has no attribute 'decode'

[cboos]

Sorry, it's a PluginIssue.