code: def unset(self, key):
      
  
      try:
        try:
          self.bucket.delete(key)
        except couchbase.exception.MemcachedError, inst: 
          if str(inst) == "Memcached error #1:  Not found":
            # for some reason the py cb client raises an error when
            # a key isnt found, instead we just want a none value.
            return
          else:
            raise
        except:
          raise
      except:
        raise
docs: Delete object indexed by <key>