Here is the trackback (the uploaded file is a PDF file):

UnicodeDecodeError Python 3.1.1: /home/chu7/software/bin/python3
Mon Sep 7 12:31:07 2009 

A problem occurred in a Python script. Here is the sequence of function 
calls leading up to the error, in the order they occurred.

 /home/chu7/web/cgi-bin/upload.py in () 
     35 );
 
     36 elif pathInfo == "/upload":
 
=>   37     fieldStorage = cgi.FieldStorage();
 
     38     fileItem = fieldStorage["file"];
 
     39     if fileItem.filename != "":
 
fieldStorage undefined, cgi = <module 'cgi' 
from '/home/chu7/software/lib/python3.1/cgi.py'>, cgi.FieldStorage = 
<class 'cgi.FieldStorage'> 
 /home/chu7/software/lib/python3.1/cgi.py in __init__(self=FieldStorage
(None, None, []), fp=None, headers={'content-length': '76784', 'content-
type': 'multipart/form-data; boundary=---------------------------
7d95563062a'}, outerboundary='', environ=<os._Environ object at 
0x8ee040c>, keep_blank_values=0, strict_parsing=0) 
    489             self.read_urlencoded()
 
    490         elif ctype[:10] == 'multipart/':
 
=>  491             self.read_multi(environ, keep_blank_values, 
strict_parsing)
 
    492         else:
 
    493             self.read_single()
 
self = FieldStorage(None, None, []), self.read_multi = <bound method 
FieldStorage.read_multi of FieldStorage(None, None, [])>, environ = 
<os._Environ object at 0x8ee040c>, keep_blank_values = 0, 
strict_parsing = 0 
 /home/chu7/software/lib/python3.1/cgi.py in read_multi
(self=FieldStorage(None, None, []), environ=<os._Environ object at 
0x8ee040c>, keep_blank_values=0, strict_parsing=0) 
    609         # Create bogus content-type header for proper multipart 
parsing
 
    610         parser.feed('Content-Type: %s; boundary=%s\r\n\r\n' % 
(self.type, ib))
 
=>  611         parser.feed(self.fp.read())
 
    612         full_msg = parser.close()
 
    613         # Get subparts
 
parser = <email.feedparser.FeedParser object at 0x910daac>, parser.feed 
= <bound method FeedParser.feed of <email.feedparser.FeedParser object 
at 0x910daac>>, self = FieldStorage(None, None, []), self.fp = 
<_io.TextIOWrapper name='<stdin>' encoding='ANSI_X3.4-1968'>, 
self.fp.read = <built-in method read of _io.TextIOWrapper object at 
0x8ee833c> 
 /home/chu7/software/lib/python3.1/encodings/ascii.py in decode
(self=<encodings.ascii.IncrementalDecoder object at 0x8f6b74c>, 
input=b'-----------------------------7d95563062a\r\nCo...\n-------------
----------------7d95563062a--\r\n', final=True) 
     24 class IncrementalDecoder(codecs.IncrementalDecoder):
 
     25     def decode(self, input, final=False):
 
=>   26         return codecs.ascii_decode(input, self.errors)[0]
 
     27 
 
     28 class StreamWriter(Codec,codecs.StreamWriter):
 
global codecs = <module 'codecs' 
from '/home/chu7/software/lib/python3.1/codecs.py'>, 
codecs.ascii_decode = <built-in function ascii_decode>, input = b'------
-----------------------7d95563062a\r\nCo...\n---------------------------
--7d95563062a--\r\n', self = <encodings.ascii.IncrementalDecoder object 
at 0x8f6b74c>, self.errors = 'strict' 

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc7 in position 
158: ordinal not in range(128) 
      args = ('ascii', b'-----------------------------
7d95563062a\r\nCo...\n-----------------------------7d95563062a--\r\n', 
158, 159, 'ordinal not in range(128)') 
      encoding = 'ascii' 
      end = 159 
      object = b'-----------------------------7d95563062a\r\nCo...\n----
-------------------------7d95563062a--\r\n' 
      reason = 'ordinal not in range(128)' 
      start = 158 
      with_traceback = <built-in method with_traceback of 
UnicodeDecodeError object at 0x905bd2c>