human
Solve the following python programming problem given the following code:
@ expose () 
def _route(self, args, request = None) : 
    '
        Routes a request to the appropriate controller and returns its result.

        Performs a bit of validation - refuses to route delete and put actions
        via a GET request).
        ' 
    if (request is None) : 
        from pecan import request 
method = request.params.get ('_method', request.method).lower () 
    if ((num_args.method == 'GET') and (method in ('delete', 'put'))) : 
        abort (405) 
result = self._find_sub_controllers (args, request) 
    if result : 
        return result 
handler = getattr (self, ('_handle_%s' % method), self._handle_unknown_method) 
    try : 
        if (len (getargspec (handler).args) == 3) : 
            result = handler (method, args) 
else : 
            result = handler (method, args, request) 
argspec = self._get_args_for_controller (result [0]) 
        num_args = len (argspec) 
        if (num_args < len (args)) : 
            _lookup_result = self._handle_lookup (args, request) 
            if _lookup_result : 
                return _lookup_result 
except (exc.HTTPClientError, exc.HTTPNotFound, exc.HTTPMethodNotAllowed) as e : 
        _lookup_result = self._handle_lookup (args, request) 
        if _lookup_result : 
            return _lookup_result 
if isinstance (e, exc.HTTPMethodNotAllowed) : 
            def method_iter() : 
                for func in ('get', 'get_one', 'get_all', 'new', 'edit', 'get_delete') : 
                    if self._find_controller (func) : 
                        (yield 'GET') 
                        break 
for method in ('HEAD', 'POST', 'PUT', 'DELETE', 'TRACE', 'PATCH') : 
                    func = method.lower () 
                    if self._find_controller (func) : 
                        (yield method) 
e.allow = sorted (method_iter ()) 
raise 
return result 

    
    

    Fix the buggy line: if ((num_args.method == 'GET') and (method in ('delete', 'put'))) :
assistant
#Here is Python code to fix the buggy line: if ((num_args.

if ((request.method == 'GET') and (method in ('delete', 'put'))) :