升级Python导致bt面板中的计划任务执行失败
微wx笑
2022-03-03【网页网站】
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bt面板 宝塔面板 Python 计划任务
bt面板升级Python导致 RuntimeError: Bad magic number in .pyc file，解决了之后以为就没有问题了，后来发现设置的计划任务全都执行失败了，根据失败的错误日志判断，还是升级Python版本导致的。
错误日志
File "/www/server/panel/script/backup.py", line 23
print "★["+endDate+"] "+log
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print("★["+endDate+"] "+log)?
File "/www/server/panel/script/backup.py", line 23
print "★["+endDate+"] "+log
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print("★["+endDate+"] "+log)?
File "/www/server/panel/script/backup.py", line 23
print "★["+endDate+"] "+log
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print("★["+endDate+"] "+log)?解决方法
参考：bt面板升级Python导致 RuntimeError: Bad magic number in .pyc file
在解决BT面板不能启动的问题时，只将部分位置的“python”修改为“python2.6”,导致一些功能不能用。
比如“bt”文件中的
ps aux |grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'如果程序是通过“python2.6”启动，那么可能查询到进程ID，如果不是，那就查不到。
1、将“bt”文件中的所有“python”都修改为“python2.6”
完整文件内容如下：
#!/bin/bash
# chkconfig: 2345 55 25
# description: bt Cloud Service
### BEGIN INIT INFO
# Provides: bt
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts bt
# Description: starts the bt
### END INIT INFO
panel_path=/www/server/panel
cd $panel_path
panel_start()
{
isStart=`ps aux |grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
if [ "$isStart" == '' ];then
echo -e "Starting Bt-Panel... \c"
if [ -f 'main.py' ];then
python2.6 -m py_compile main.py
fi
nohup python2.6 main.pyc `cat data/port.pl` > /tmp/panelBoot.pl 2>&1 &
sleep 0.2
isStart=`ps aux |grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
if [ "$isStart" == '' ];then
echo -e "\033[31mfailed\033[0m"
echo '------------------------------------------------------'
cat /tmp/panelBoot.pl
echo '------------------------------------------------------'
echo -e "\033[31mError: BT-Panel service startup failed.\033[0m"
return;
fi
echo -e "\033[32mdone\033[0m"
else
echo "Starting Bt-Panel... Bt-Panel (pid $isStart) already running"
fi
isStart=`ps aux |grep 'python2.6 task.pyc$'|awk '{print $2}'`
if [ "$isStart" == '' ];then
echo -e "Starting Bt-Tasks... \c"
if [ -f 'task.py' ];then
python2.6 -m py_compile task.py
fi
nohup python2.6 task.pyc > /tmp/panelTask.pl 2>&1 &
sleep 0.2
isStart=`ps aux |grep 'python2.6 task.pyc$'|awk '{print $2}'`
if [ "$isStart" == '' ];then
echo -e "\033[31mfailed\033[0m"
echo '------------------------------------------------------'
cat /tmp/panelTask.pl
echo '------------------------------------------------------'
echo -e "\033[31mError: BT-Task service startup failed.\033[0m"
return;
fi
echo -e "\033[32mdone\033[0m"
else
echo "Starting Bt-Tasks... Bt-Tasks (pid $isStart) already running"
fi
}
panel_stop()
{
echo -e "Stopping Bt-Tasks... \c";
pids=`ps aux | grep 'python2.6 task.pyc$'|awk '{print $2}'`
arr=($pids)
for p in ${arr[@]}
do
kill -9 $p
done
echo -e "\033[32mdone\033[0m"
echo -e "Stopping Bt-Panel... \c";
pids=`ps aux | grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
arr=($pids)
for p in ${arr[@]}
do
kill -9 $p
done
echo -e "\033[32mdone\033[0m"
}
panel_status()
{
isStart=`ps aux |grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
if [ "$isStart" != '' ];then
echo -e "\033[32mBt-Panel (pid $isStart) already running\033[0m"
else
echo -e "\033[31mBt-Panel not running\033[0m"
fi
isStart=`ps aux |grep 'python2.6 task.pyc$'|awk '{print $2}'`
if [ "$isStart" != '' ];then
echo -e "\033[32mBt-Task (pid $isStart) already running\033[0m"
else
echo -e "\033[31mBt-Task not running\033[0m"
fi
}
panel_reload()
{
isStart=`ps aux |grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
if [ "$isStart" != '' ];then
echo -e "Reload service Bt-Panel... \c"
pids=`ps aux | grep 'python2.6 main.pyc'|grep -v grep|awk '{print $2}'`
arr=($pids)
for p in ${arr[@]}
do
kill -9 $p
done
nohup python2.6 main.pyc `cat data/port.pl` >> /tmp/panelBoot.pl 2>&1 &
if [ "$isStart" == '' ];then
echo -e "\033[31mfailed\033[0m"
echo '------------------------------------------------------'
cat /tmp/panelBoot.pl
echo '------------------------------------------------------'
echo -e "\033[31mError: BT-Panel service startup failed.\033[0m"
return;
fi
echo -e "\033[32mdone\033[0m"
else
echo -e "\033[31mBt-Panel not running\033[0m"
fi
}
install_used()
{
if [ ! -f /www/server/panel/aliyun.pl ];then
return;
fi
password=`cat /dev/urandom | head -n 16 | md5sum | head -c 12`
username=`python2.6 /www/server/panel/tools.py panel $password`
echo "$password" > /www/server/panel/default.pl
rm -f /www/server/panel/aliyun.pl
}
case "$1" in
'start')
install_used
panel_start
;;
'stop')
panel_stop
;;
'restart')
panel_stop
sleep 0.2
panel_start
;;
'reload')
panel_reload
;;
'status')
panel_status
;;
'default')
port=`cat /www/server/panel/data/port.pl`
password=`cat /www/server/panel/default.pl`
echo -e "=================================================================="
echo -e "\033[32mBT-Panel default info!\033[0m"
echo -e "=================================================================="
echo "Bt-Panel: http://IP:$port"
echo -e `python2.6 /www/server/panel/tools.py username`
echo -e "password: $password"
echo -e "\033[33mWarning:\033[0m"
echo -e "\033[33mIf you cannot access the panel, \033[0m"
echo -e "\033[33mrelease the following port (8888|888|80|443|20|21) in the security group\033[0m"
echo -e "=================================================================="
;;
*)
echo "Usage: /etc/init.d/bt {start|stop|restart|reload|default}"
;;
esac我的系统中最初安装的是python2.6，后来又安装了python 3.7.5
执行“python -V”，得到的结果是 python 3.7.5，具体安装过程参考：CentOS release 6.10 下 Python 3.7.5 安装记录
2、修改/www/server/panel/class/crontab.py文件
在管理计划任务的时候，可以看到地址栏访问的是/crontab，于是找到/www/server/panel/class/crontab.py文件，把用到“python”的地方都修改为“python2.6”
已经创建的任务可以删除重新创建，也可以直接在线编辑脚本，将“python”都修改为“python2.6”就可以了。
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原文链接：https://www.ivu4e.cn/blog/web/2022-03-03/1079.html
