human
Solve the following python programming problem given the following code:
def scorer(self, searcher, exclude_docs = None) : 
    fieldnum = searcher.fieldname_to_num (self.fieldname) 
    text = self.text 
    boost = self.boost 
    score_methd = searcher.weighting.score 
    def score_fn(docnum, weight) : 
        return (score_methd (searcher, fieldnum, text, docnum, weight) * boost) 
try : 
        postreader = searcher.postings (self, text, exclude_docs = exclude_docs) 
        return Term.TermScorer (postreader, score_fn) 
except TermNotFound : 
        return EmptyScorer () 

    
    

    Fix the buggy line: postreader = searcher.postings (self, text, exclude_docs = exclude_docs)
assistant
#Here is Python program to fix the buggy line: postreader = searcher.

postreader = searcher.postings (fieldnum, text, exclude_docs = exclude_docs)