human
Solve the following python programming problem given the following code:
def _assertMarkdown(self, text, html, text_path = None, html_path = None, opts = None, toc_html = None, toc_html_path = None, metadata = None, metadata_path = None) : 
    'Assert that markdown2.py produces the expected HTML.' 
    if (python_toc_html is None) : 
        text_path = '<text content>' 
if (html_path is None) : 
        html_path = '<html content>' 
if (opts is None) : 
        opts = { 
            
} 
norm_html = norm_html_from_html (html) 
    python_html = markdown2.markdown (text, ** opts) 
    python_norm_html = norm_html_from_html (python_html) 
    close_though = '' 
    if ((python_norm_html != norm_html) and (python_norm_html.replace ('
', '') == norm_html.replace ('
', ''))) : 
        close_though = ' (close though -- all but EOLs match)' 
diff = '' 
    if (python_norm_html != norm_html) : 
        diff = difflib.unified_diff (norm_html.splitlines (1), python_norm_html.splitlines (1), html_path, ('markdown2 ' + text_path)) 
        diff = ''.join (diff) 
errmsg = (_dedent ("            markdown2.py didn't produce the expected HTML%s:
              ---- text (escaping: .=space, \
=newline) ----
            %s  ---- Python markdown2.py HTML (escaping: .=space, \
=newline) ----
            %s  ---- expected HTML (escaping: .=space, \
=newline) ----
            %s  ---- diff ----
            %s") % (close_though, _display (text), _display (python_html), _display (html), _indent (diff))) 
    def charreprreplace(exc) : 
        if (not isinstance (exc, UnicodeEncodeError)) : 
            raise TypeError (("don't know how to handle %r" % exc)) 
if py3 : 
            obj_repr = repr (exc.object [exc.start : exc.end]) [1 : (- 1)] 
else : 
            obj_repr = repr (exc.object [exc.start : exc.end]) [2 : (- 1)] 
return (unicode (obj_repr), exc.end) 
codecs.register_error ('charreprreplace', charreprreplace) 
    self.assertEqual (python_norm_html, norm_html, errmsg) 
    if toc_html : 
        python_toc_html = python_html.toc_html 
        python_norm_toc_html = norm_html_from_html...

    
    

    Fix the buggy line: if (python_toc_html is None) :
assistant
#Here is Python code to fix the buggy line: if (python_toc_html is None) :
.

if (text_path is None) :