Hello!

I use

'Sage Version 4.6, Release Date: 2010-10-30'

which I compiled myself from the sources.

on Linux (Gentoo) 2.6.35.7 x86_64 AMD Athlon(tm) 64 X2 Dual Core
Processor 4600+ AuthenticAMD GNU/Linux.

I start notebook() and then start a new worksheet. Then I try "Load
worksheet from a file" and in the new page I browse my computer to
select a worksheet file (sws) to upload. After selecting, I press the
button "Upload worksheet" and in the new page I read

Internal Server Error
An error occurred rendering the requested page. More information is
available in the server log.

In the terminal the following appears:

2010-12-27 18:27:47+0100 [HTTPChannel,0,127.0.0.1] Exception
rendering:
2010-12-27 18:27:47+0100 [HTTPChannel,0,127.0.0.1] Unhandled Error
        Traceback (most recent call last):
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/
defer.py", line 307, in _startRunCallbacks
            self._runCallbacks()
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/
defer.py", line 323, in _runCallbacks
            self.result = callback(self.result, *args, **kw)
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/web2/
fileupload.py", line 210, in _doReadHeaders
            return _readHeaders(self.stream)
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/
defer.py", line 697, in unwindGenerator
            return _deferGenerator(f(*args, **kwargs), Deferred())
        --- <exception caught here> ---
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/internet/
defer.py", line 600, in _deferGenerator
            result = g.next()
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/web2/
fileupload.py", line 73, in _readHeaders
            ctype =
http_headers.parseContentType(http_headers.tokenize((value,),
foldCase=False))
          File "/home/alex/usr/share/sage-4.6/local/lib/python2.6/site-
packages/Twisted-9.0.0-py2.6-linux-x86_64.egg/twisted/web2/
http_headers.py", line 519, in parseContentType
            raise ValueError, "MIME Type "+str(type)+" invalid."
        exceptions.ValueError: MIME Type [] invalid.

I would be grateful for any help!

Best Regards

Alexandros

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