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# PyMysql

### 参考

{% hint style="info" %}
Github: <https://github.com/PyMySQL/PyMySQL/tree/main>
{% endhint %}

### 要求

* Python -- one of the following:
* CPython : 3.7 and newer
* PyPy : Latest 3.x version
* MySQL Server -- one of the following:
* MySQL >= 5.7
* MariaDB >= 10.2

### 安装

```bash
python3 -m pip install PyMySQL
```

### 例子

```bash
CREATE TABLE `users` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `email` varchar(255) COLLATE utf8_bin NOT NULL,
    `password` varchar(255) COLLATE utf8_bin NOT NULL,
    PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
AUTO_INCREMENT=1 ;
```

### 使用

```python
import pymysql.cursors

# Connect to the database
connection = pymysql.connect(host='localhost',
                             user='user',
                             password='passwd',
                             database='db',
                             cursorclass=pymysql.cursors.DictCursor)

with connection:
    with connection.cursor() as cursor:
        # Create a new record
        sql = "INSERT INTO `users` (`email`, `password`) VALUES (%s, %s)"
        cursor.execute(sql, ('webmaster@python.org', 'very-secret'))

    # connection is not autocommit by default. So you must commit to save
    # your changes.
    connection.commit()

    with connection.cursor() as cursor:
        # Read a single record
        sql = "SELECT `id`, `password` FROM `users` WHERE `email`=%s"
        cursor.execute(sql, ('webmaster@python.org',))
        result = cursor.fetchone()
        print(result)
```

### 结果

```bash
{'password': 'very-secret', 'id': 1}
```