human
Solve the following python programming problem given the following code:
def _run_get_new_deps(self) : 
    self.task.set_tracking_url = self.tracking_url_callback 
    self.task.set_status_message = self.status_message_callback 
    def deprecated_tracking_url_callback(* args, **kwargs) : 
        warnings.warn ('tracking_url_callback in run() args is deprecated, use set_tracking_url instead.', DeprecationWarning) 
        self.tracking_url_callback (* args, ** kwargs) 
run_again = False 
    try : 
        task_gen = self.task.run (tracking_url_callback = deprecated_tracking_url_callback) 
except TypeError as ex : 
        if ('unexpected keyword argument' not in str (ex)) : 
            raise 
run_again = True 
if run_again : 
        task_gen = self.task.run () 
self.task.set_tracking_url = None 
    self.task.set_status_message = None 
    if (not isinstance (task_gen, types.GeneratorType)) : 
        return None 
next_send = None 
    while True : 
        try : 
            if (self is None) : 
                requires = six.next (task_gen) 
else : 
                requires = task_gen.send (next_send) 
except StopIteration : 
            return None 
new_req = flatten (requires) 
        new_deps = [(t.task_module, t.task_family, t.to_str_params ()) for t in new_req] 
        if all ((t.complete () for t in new_req)) : 
            next_send = getpaths (requires) 
else : 
            return new_deps 

    
    

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

if (next_send is None) :