Python：cator查询MySQL和SQLite数据库

现看一个直接使用mysql_connector_python查询数据库的示例

from mysql.connector import Connect

db_config = {
    "database": "data",
    "username": "root",
    "password": "123456",
    "host": "127.0.0.1",
    "port": 3306,
    "charset": "utf8",
    "autocommit": True
}

connect = Connect(**db_config)
cursor = connect.cursor(dictionary=True)

cursor.execute('select * from person where id = %(id)s', {'id': 1})
rows = cursor.fetchall()
print(rows)
# [{'id': 1, 'name': 'Jackk', 'age': 23}]

cursor.close()
connect.close()

使用cator，更为简洁

pip install cator

代码示例

import cator

db_url = "mysql://root:123456@127.0.0.1:3306/data?charset=utf8&autocommit=true"

db = cator.connect(db_url)
rows = db.select('select * from person where id = :id', {'id': 1})
print(rows)
# [{'id': 1, 'name': 'Jackk', 'age': 23}]

db.close()

优势：

1. 将connection和cursor合二为一；
2. 增加:key 和 ?的占位符支持；
3. 增加select、insert、update、delete等操作返回值预处理，不用再手动使用cursor

文档: https://github.com/mouday/cator