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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def delete_index(self,*fields):

 """Delete the index on the specified fields"""

        for f in fields:
            if not f in self.indices:
                raise ValueError,"No index on field %s" %f
        for f in fields:
            del self.indices[f]
        self.commit()