我无法通过从列表中获取列名来创建表？(postgresql/ create copg2)

pip install psycopg2

import psycopg2

# 连接到数据库
conn = psycopg2.connect(database="your_database", user="your_username", password="your_password", host="your_host", port="your_port")

# 创建游标对象
cur = conn.cursor()

# 获取列名列表
column_names = ["column1", "column2", "column3"]

# 构建CREATE TABLE语句
create_table_query = "CREATE TABLE your_table_name ("

# 添加列名和数据类型
for column_name in column_names:
    create_table_query += column_name + " data_type,"

# 去除最后一个逗号
create_table_query = create_table_query[:-1]

# 添加表的其他属性
create_table_query += ");"

# 执行CREATE TABLE语句
cur.execute(create_table_query)

# 提交事务
conn.commit()

# 关闭游标和连接
cur.close()
conn.close()