Python

用 Python 访问 CovenantSQL

开发者可以通过 PyCovenantSQL 来使用 CovenantSQL。

兼容性

Python SDK 目前只兼容 python 3.4+

安装和使用

使用 Python SDK 需要 部署 Adapter 工具。

使用 pip 安装 PyCovenantSQL

$ python3 -m pip install PyCovenantSQL 

示例

将 adapter_host 替换为 adapter 地址，adapter_port 替换为 adapter 的端口，dsn 替换为 DSN。

import pycovenantsql

# Connect to the database
connection = pycovenantsql.connect(host='<adapter_host>',
                             port=<adapter_port>,
                             database='<dsn>'
                             )

try:
    with connection.cursor() as cursor:
        # Create a new record
        sql = "INSERT INTO `users` (`email`, `password`) VALUES (%s, %s)"
        cursor.execute(sql, ('[email protected]', 'very-secret'))

    # connection is autocommit. No need to commit in any case.
    # connection.commit()

    with connection.cursor() as cursor:
        # Read a single record
        sql = "SELECT `id`, `password` FROM `users` WHERE `email`=%s"
        cursor.execute(sql, ('[email protected]',))
        result = cursor.fetchone()
        print(result)
finally:
    connection.close()