human
Solve the following python programming problem given the following code:
def cmd_xml(self, cmd) : 
    def _cmd_xml(args, obj) : 
        if (not args) : 
            return 
arg = args.pop (0) 
        if args : 
            result = re.search ('^"(.*)"$', args [0]) 
            if result : 
                obj.append (('<%s>' % arg)) 
                obj.append (result.group (1)) 
                obj.append (('</%s>' % arg)) 
                args.pop (0) 
                _cmd_xml (args, obj) 
else : 
                obj.append (('<%s>' % arg)) 
                _cmd_xml (args, obj) 
                obj.append (('</%s>' % arg)) 
else : 
            obj.append (('<%s>' % arg)) 
            _cmd_xml (args, obj) 
            obj.append (('</%s>' % arg)) 
args = cmd.split () 
    obj = [] 
    _cmd_xml (args, _cmd_xml) 
    xml = ''.join (obj) 
    self._log (DEBUG2, 'cmd_xml: "%s"', xml) 
    return xml 

    
    

    Fix the buggy line: _cmd_xml (args, _cmd_xml)
assistant
#Here is Python code to fix the buggy line: _cmd_xml (args, _cmd_xml)
.

_cmd_xml (args, obj)