如何让sqlite3存储tzinfo？

import sqlite3
from datetime import datetime, timezone

# 将tzinfo转换为字符串
tzinfo = timezone.utc
tzinfo_str = str(tzinfo)

# 连接到SQLite3数据库
conn = sqlite3.connect('database.db')
cursor = conn.cursor()

# 创建表格
cursor.execute('''CREATE TABLE IF NOT EXISTS timezone (
                    id INTEGER PRIMARY KEY,
                    tzinfo TEXT
                )''')

# 插入数据
cursor.execute("INSERT INTO timezone (tzinfo) VALUES (?)", (tzinfo_str,))

# 提交更改
conn.commit()

# 查询数据
cursor.execute("SELECT * FROM timezone")
row = cursor.fetchone()

# 将字符串转换回tzinfo对象
stored_tzinfo_str = row[1]
stored_tzinfo = timezone.utc if stored_tzinfo_str == 'UTC' else None  # 根据需要进行转换

# 关闭连接
cursor.close()
conn.close()