Re: [MathDOM] MathDOM 0.8 won't start

[Stefan B. <ste...@be...>]

Hi,

sorry for the late reply.

Mario Ceresa wrote:
> I have a problem after I just downloaded and installed MathDOM 0.8.
> 
> I tried to do:
> 
> from mathml.lmathdom import MathDOM
> 
> but it crashes with:
> /usr/lib/python2.5/site-packages/mathdom-0.8-py2.5.egg/mathml/termparser.py
> in p_case(self, p_arithmetic_exp, p_bool_expression)
>     289                   Suppress(CaselessKeyword('END'))
>     290                   )
> --> 291         p_case.setParseAction(self._parse_case)
>     292         return p_case
>     293
> 
> AttributeError: 'NoneType' object has no attribute 'setParseAction'
> ________________________________________________________________
> 
> It seems to me related to these warning that I receive just before the
> exception is thrown:
> 
> /usr/lib/python2.5/site-packages/mathdom-0.8-py2.5.egg/mathml/termparser.py:288:
> SyntaxWarning: Cannot combine element of type <type 'NoneType'> with
> ParserElement
>   Suppress(CaselessKeyword('ELSE')) + p_arithmetic_exp +
> /usr/lib/python2.5/site-packages/mathdom-0.8-py2.5.egg/mathml/termparser.py:289:
> SyntaxWarning: Cannot combine element of type <type 'NoneType'> with
> ParserElement
>   Suppress(CaselessKeyword('END'))

I just tested and it works for me with pyparsing 1.4.2. What version of
pyparsing are you using?

Stefan