(self, tag_name, attrs)
return attrs
Replaces class="foo bar" with class=["foo", "bar"]

        Modifies its input in place.
Replaces class="foo bar" with class=["foo", "bar"]
Replaces class = foo bar with class = [ foo bar ]
def _replace_cdata_list_attribute_values(self, tag_name, attrs):
        """Replaces class="foo bar" with class=["foo", "bar"]

        Modifies its input in place.
        """
        if not attrs:
            return attrs
        if self.cdata_list_attributes:
            universal = self.cdata_list_attributes.get('*', [])
            tag_specific = self.cdata_list_attributes.get(
                tag_name.lower(), None)
            for attr in attrs.keys():
                if attr in universal or (tag_specific and attr in tag_specific):
                    # We have a "class"-type attribute whose string
                    # value is a whitespace-separated list of
                    # values. Split it into a list.
                    value = attrs[attr]
                    if isinstance(value, basestring):
                        values = whitespace_re.split(value)
                    else:
                        # html5lib sometimes calls setAttributes twice
                        # for the same tag when rearranging the parse
                        # tree. On the second call the attribute value
                        # here is already a list.  If this happens,
                        # leave the value alone rather than trying to
                        # split it again.
                        values = value
                    attrs[attr] = values
        return attrs
def _replace_cdata_list_attribute_values ( self , tag_name , attrs ) : if not attrs : return attrs if self . cdata_list_attributes : universal = self . cdata_list_attributes . get ( '*' , [ ] ) tag_specific = self . cdata_list_attributes . get ( tag_name . lower ( ) , None ) for attr in attrs . keys ( ) : if attr in universal or ( tag_specific and attr in tag_specific ) : # We have a "class"-type attribute whose string # value is a whitespace-separated list of # values. Split it into a list. value = attrs [ attr ] if isinstance ( value , basestring ) : values = whitespace_re . split ( value ) else : # html5lib sometimes calls setAttributes twice # for the same tag when rearranging the parse # tree. On the second call the attribute value # here is already a list.  If this happens, # leave the value alone rather than trying to # split it again. values = value attrs [ attr ] = values return attrs