human
Solve the following python programming problem given the following code:
def parse(self, line) : 
    def cbParse(result) : 
        pass 
def ebParse(err) : 
        err.trap (eimaginary.NoSuchCommand) 
        self.proto.write ('Bad command or filename\r
') 
def ebAmbiguity(err) : 
        err.trap (eimaginary.AmbiguousArgument) 
        exc = err.value 
        msg = (("Could you be more specific?  When you said '" + exc.partValue) + "', did you mean: ") 
        def format(potentialTarget) : 
            concept = iimaginary.IConcept (potentialTarget) 
            vt102 = concept.vt102 (self.player) 
            flattened = list (flatten (vt102, useColors = False)) 
            return ''.join (flattened) 
for obj in exc.objects [: (- 1)] : 
            msg += format (obj) 
            msg += ', ' 
msg += 'or ' 
        msg += format (exc.objects [(- 1)]) 
        msg += '?' 
        self.send ((msg, '\r
')) 
def ebUnexpected(err) : 
        log.err (err) 
        self.proto.write ('\r
error\r
') 
self.send (('> ', line, '
')) 
    d = defer.maybeDeferred (Action.parse, self.actor, line) 
    d.addCallbacks (cbParse, ebParse) 
    d.addErrback (ebParse) 
    d.addErrback (ebUnexpected) 
    return d 

    
    

    Fix the buggy line: d.addErrback (ebParse)
assistant
#Here is Python code to fix the buggy line: d.

d.addErrback (def ebAmbiguity()