python mysqldb 查询返回字

发布时间:2019-08-26 07:20:06编辑:auto阅读(1508)

    MySQLdb默认查询结果都是返回tuple,输出时候不是很方便,必须按照0,1这样读取,无意中在网上找到简单的修改方法,就是传递一个cursors.DictCursor就行。

    默认程序:
    import MySQLdb
    db = MySQLdb.connect(host = 'localhost', user = 'root', passwd = '123456', db = 'test')
    cursor = db.cursor()
    cursor.execute('select * from user')
    rs = cursor.fetchall()
    print rs
    # 返回类似如下
    # ((1000L, 0L), (2000L, 0L), (3000L, 0L))


    修改后:
    import MySQLdb
    import MySQLdb.cursors
    db = MySQLdb.connect(host = 'localhost', user = 'root', passwd = '123456
    ', db = 'test',cursorclass = MySQLdb.cursors.DictCursor)
    cursor = db.cursor()
    cursor.execute('select * from user')
    rs = cursor.fetchall()
    print rs
    # 返回类似如下
    # ({'age': 0L, 'num': 1000L}, {'age': 0L, 'num': 2000L}, {'age': 0L, 'num': 3000L})


    或者也可以用下面替换connect和cursor部分
    db = MySQLdb.connect(host = 'localhost', user = 'root', passwd = '123456', db = 'test')
    cursor = conn.cursor(cursorclass = MySQLdb.cursors.DictCursor)

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