original_docstring: Drop tables if they already exist.
      :params cur: cursor
      :params conn: DB connection
      
docstring: Drop tables if they already exist.
docstring_tokens: Drop tables if they already exist .
code: def drop_tables(cur, conn):
      """Drop tables if they already exist.
      :params cur: cursor
      :params conn: DB connection
      """
      for query in drop_table_queries:
          cur.execute(query)
          conn.commit()
code_tokens: def drop_tables ( cur , conn ) : for query in drop_table_queries : cur . execute ( query ) conn . commit ( )
short_docstring: Drop tables if they already exist.
short_docstring_tokens: Drop tables if they already exist .
comment: """Drop tables if they already exist.
      :params cur: cursor
      :params conn: DB connection
      """