如何告诉python不要将哈希符号解释为注释？ [英] How to tell python not to interpret hash symbol as comment?

问题描述

我想通过python编写的os.system命令打开和关闭crone作业。基本上，使用sed命令注释/取消注释crontab行以控制作业计划。

I wanted to turn on and turn off crone job from os.system command written in python. Basically, using sed command to comment/uncomment the crontab line to control the job schedule.

但是当我按如下所示放置此命令时，python解释为＃后的文本为

But when I put this command as shown below, python interpret as text after # as comment.

import os
os.system("crontab -l | sed '/^\*.*heightSQL.py/s/^/#/' | crontab -")

有什么方法可以告诉python不要将＃解释为注释符号？

Is there any way to tell python not to interpret # as comment symbol?

推荐答案

您的哈希符号没有问题，但是引用不正确。试试这个：

You have no issue with the hash symbol but your quoting is not proper. Try this:

os.system(r"crontab -l | sed '/^\*.*heightSQL.py/s/^/#/' | crontab -")

还有btw：您确定 crontab -l <​​/ code>在 crontab-已经运行时会产生正确的输出吗？我不是。但这不在这里。

And btw: Are you sure crontab -l produces proper output while crontab - is already running? I'm not. But that's beside the point here.

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