将代码移至 Debian 导致 "Use multi=True when executing multiple statements" 个错误语句

Question

我已经运行 python 脚本在装有 Ubuntu 20.04 LTS 的机器上调用 MySQL。我最近将这些脚本移到了服务器运行 Debian 10.

两台服务器都安装了 MySQL 8.0.21。 Python 3.7.3 在 Debian 服务器上，Python 3.8.2 在 Ubuntu 上。当我在 Debian 服务器上执行 python 脚本时，我收到以下错误消息：

Use multi=True when executing multiple statements

我没有对代码进行任何更改，所以我不确定为什么我会在 Debian 服务器上收到此消息，而不是 Ubuntu。

这是导致错误的脚本部分：

cursor = dbconn.cursor(dictionary=True)

# get next scheduled event to be aired
sql = "CALL GetEvent();"
cursor.execute(sql)

result = cursor.fetchone()
cursor.close()

if result:  
    eventtime = str(result["eventtime"])

    # the max seconds we are going to wait is 60
    init_waitseconds = timediffinseconds(eventtime)
    if init_waitseconds > 61:
        waitseconds = 60
    else:
        waitseconds = init_waitseconds

    # wait for specified time
    print_stdout(f"{bcolors.CGREEN}[EVENT_MONITOR]{bcolors.ENDC} Waiting for next scheduled event at {eventtime}")
    time.sleep(waitseconds)

调用的存储过程如下：

CREATE DEFINER=`root`@`localhost` PROCEDURE `GetEvent`()
BEGIN
    
    DECLARE v_DayName CHAR(9);    
    SET v_DayName := DAYNAME(CURRENT_DATE);
    
    SELECT e.name, e.eventaction, e.data, e.extra, et.eventday, et.eventtime, et.recurring
        FROM event e
        INNER JOIN eventtime et ON et.eventID = e.ID
        WHERE et.eventdate = CURDATE() AND et.recurring = 'No' AND e.enabled = 1 AND et.eventtime > CURRENT_TIME() OR           
            et.eventday = 'v_DayName' AND et.recurring = 'Yes' AND e.enabled = 1 AND et.eventtime > CURRENT_TIME() OR
            et.eventday = 'Day' AND et.recurring = 'Yes' AND e.enabled = 1 AND et.eventtime > CURRENT_TIME() OR
            CASE WHEN IsWeekday('v_DayName') = True THEN et.eventday = 'Mon-Fri' END AND e.enabled = 1 AND et.eventtime > CURRENT_TIME() OR
            CASE WHEN IsWeekend('v_DayName') = True THEN et.eventday = 'Sat-Sun' END AND e.enabled = 1 AND et.eventtime > CURRENT_TIME()
        ORDER BY et.eventtime
        LIMIT 1;
END

此外，我的 python 脚本的这一部分会导致同样的错误：

cursor = dbconn.cursor(dictionary=True)

# CheckQueueCount MySQL procedure retrieves how many tracks are currently in queuelist table
sql = "CALL CheckQueueCount"
cursor.execute(sql)

result = cursor.fetchone()
ret = result["QueueCount"]
cursor.close()
return ret

及其调用的存储过程：

CREATE DEFINER=`root`@`localhost` PROCEDURE `CheckQueueCount`()
BEGIN

    SELECT COUNT(ID) AS QueueCount FROM queuelist;
    
END

Answer 1

好的，我相信我已经解决了这个问题。我卸载了使用命令安装的连接器：

sudo pip3 install mysql-connector

而是安装了它：

sudo pip3 install mysql-connector-python

错误已消失。

将代码移至 Debian 导致 "Use multi=True when executing multiple statements" 个错误语句

Moving Code to Debian Caused "Use multi=True when executing multiple statements" Error Statements

python

mysql-python

python-3.x