code: def create_table_from(self, name, src):
          
          # Lookup the command which was used to create the "src" table.
          query = self.execute("SELECT sql FROM sqlite_master WHERE "
                               "type='table' and name=?", (src,))
          try:
              cmd = query.fetchone()[0]
          except TypeError:
              raise sql.OperationalError("Cannot copy non-existent table '{0}'"
                                         .format(src))
  
          # Modify the original command to replace the old table name
          # with the new one.
          new_cmd = re.sub("(CREATE TABLE) \w+", "\\1 " + name, cmd,
                           re.IGNORECASE)
  
          # Execute this new command.
          self.execute(new_cmd)
docs: Create a new table with same schema as the source.
  
          If the named table already exists, nothing happens.
  
          Arguments:
  
              name (str): The name of the table to create.
              src (str): The name of the source table to duplicate.
  
          Raises:
  
              sql.OperationalError: If source table does not exist.