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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 queuedb_create(path):
 """ Create a sqlite3 db at the given path. Create all the tables and indexes we need. Raises if the table already exists """


    global QUEUE_SQL, ERROR_SQL

    lines = [l + ";" for l in QUEUE_SQL.split(";")]
    con = sqlite3.connect( path, isolation_level=None )
    db_query_execute(con, 'pragma mmap_size=536870912', ())
    for line in lines:
        db_query_execute(con, line, ())

    con.commit()
    con.row_factory = queuedb_row_factory
    return con