cannot get graphic representaion using Visc

[Abdoulaye Drame]

Hi Everybody,

I am currently following the tutorial under http://comp.ling.utexas.edu/wiki/doku.php/openccg/ccggui_tut step by step. ( It deals with about how to write grammar for OpenCCG.)
In a section it is said that after entering a "lexical family", one shoul be able to show its graphic representaion by clicking on the tab "lexicon". But this does not work for me.
I can write a lexical family but when I click on the tab "lexicon", I do not get the graphic representation of the newly created lexical Family: the window rather remains grey and no matter if I check out the options boxes (of the "lexicon" tab). On the console I also have following error message:

ValueError: Expected a string
Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python2.6/lib-tk/Tkinter.py", line 1413, in __call__
    return self.func(*args)
  File "/myhomedir/software/openccg/bin/ccg_editor.py", line 485, in redraw
    self.cfile.compile_if_needed()
  File "/myhomedir/software/openccg/bin/ccg_editor.py", line 1317, in compile_if_needed
    self.curparse = ccg2xml.parse_string(text)
  File "/myhomedir/software/openccg/bin/ccg2xml.py", line 3309, in parse_string
    retval.parse = yacc.parse(str, lexer=MacroLexer(globallexer))
  File "/myhomedir/software/openccg/bin/yacc.py", line 181, in parse
    lexer.input(input)
  File "/myhomedir/software/openccg/bin/ccg2xml.py", line 3149, in input
    self.lexer.input(s)
  File "/myhomedir/software/openccg/bin/lex.py", line 255, in input
    raise ValueError, "Expected a string"
ValueError: Expected a string

Does anybody knows what the problem could be. Thanks you in advance.
Regards, Abou.

[Anonymous]

Hi,
The problem is in the lex.py package. You have to change the following comparision.

if not isinstance(s,types.StringType):
            raise ValueError, "Expected a string"

==>

if not isinstance(s,types.StringTypes):
            raise ValueError, "Expected a string"

Note that types.StringType ==> types.StringTypes