Issue 7 in desigle: Error opening a file

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Issue 7: Error opening a file
http://code.google.com/p/desigle/issues/detail?id=7

New issue report by grimm.markus:
What steps will reproduce the problem?
1. Opening a file named 01.tex or sth like that

What is the expected output? What do you see instead?
Traceback (most recent call last):
File "/opt/desigle/desigle.py", line 445, in <lambda>
self.ui.get_widget('toolbutton_open').connect('clicked', lambda x:
self.open())
File "/opt/desigle/desigle.py", line 745, in open
self.open_file( filename )
File "/opt/desigle/desigle.py", line 760, in open_file
self.refresh_preview()
File "/opt/desigle/desigle.py", line 697, in refresh_preview
if fname in include_files or fname_base in include_files:
UnboundLocalError: local variable 'fname_base' referenced before assignment
Traceback (most recent call last):
File "desigle.py", line 817, in watch_editor
self.refresh_preview()
File "desigle.py", line 697, in refresh_preview
if fname in include_files or fname_base in include_files:
UnboundLocalError: local variable 'fname_base' referenced before assignment

What version of the product are you using? On what operating system?
current SVN Version. Ubuntu Intrepid

Please provide any additional information below.
I added a line in line 695 like that to introduce fname_base:
fname_base = ''
This one works for me.

Issue attributes:
Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

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