如何在Pylons中启动后台进程？(How can I launch a background process in Pylons?)

 我正在尝试编写一个应用程序，允许用户启动相当长时间的运行过程（5-30秒）。 然后，它应该允许用户在生成过程时检查过程的输出。 输出将仅用于用户当前的会话，因此不需要长期存储任何内容。 我有两个关于如何在利用Pylons框架的情况下完成此任务的问题： 
 
 
 
 用Pylons控制器启动后台进程的最佳方式是什么？ 
 
 
 将后台进程的输出返回给用户的最佳方式是什么？ （我应该将输出存储在数据库，会话数据等中？） 
 
 
 编辑：问题是如果我使用控制器中的子进程启动命令，则控制器会在继续之前等待子进程完成，向用户显示一个刚刚加载的空白页面，直到该进程完成。 我希望能够在启动子进程后立即将用户重定向到状态页面，允许它自己完成。 

I am trying to write an application that will allow a user to launch a fairly long-running process (5-30 seconds). It should then allow the user to check the output of the process as it is generated. The output will only be needed for the user's current session so nothing needs to be stored long-term. I have two questions regarding how to accomplish this while taking advantage of the Pylons framework:
 
 
 
What is the best way to launch a background process such as this with a Pylons controller?
 
 
What is the best way to get the output of the background process back to the user? (Should I store the output in a database, in session data, etc.?)
 
 
Edit: The problem is if I launch a command using subprocess in a controller, the controller waits for the subprocess to finish before continuing, showing the user a blank page that is just loading until the process is complete. I want to be able to redirect the user to a status page immediately after starting the subprocess, allowing it to complete on its own.

原文：https://stackoverflow.com/questions/1182587