mod_python 变量缓存

发布于 2024-07-25 04:10:15 字数 1028 浏览 5 评论 0 原文

我正在使用 mod_python 在 Apache 中运行 Trac。我正在开发一个插件，不确定全局变量是如何存储/缓存的。

我是 python 新手，在 google 上搜索了该主题，发现 mod_python 缓存了 python 模块（我认为）。但是，我希望在 Web 服务重新启动时重置缓存，但事实似乎并非如此。我这样说是因为我有一个全局变量，它是一个列表，我测试该列表以查看值是否存在，如果不存在，则添加它。我第一次运行此命令时，它向列表中添加了三个条目。随后，该列表从一开始就有三个条目。

例如：

globalList = []

class globalTest:

  def addToTheList(itemToAdd):
      print(len(globalTest))
      if itemToAdd not in globalList:
          globalList.append(itemToAdd)

  def doSomething():
    addToTheList("I am new entry one")
    addToTheList("I am new entry two")
    addToTheList("I am new entry three")

上面的代码只是我正在做的事情的一个例子，而不是实际的代码;-)。但本质上 doSomething() 方法是由 Trac 调用的。第一次运行时，它添加了所有三个条目。现在 - 即使重新启动 Web 服务器后，len(globalList) 命令也始终为 3。

我怀疑答案可能是我的会话（以及全局变量）正在被缓存，因为 Trac 正在记住我的登录信息Web 服务器重新启动后刷新 Trac 中的页面时的详细信息。如果是这种情况 - 我该如何强制清除缓存。请注意，我不想手动重置 globalList 变量，即 globalList.length = 0

任何人都可以提供有关正在发生的情况的任何见解吗？谢谢

原文

I'm using mod_python to run Trac in Apache. I'm developing a plugin and am not sure how global variables are stored/cached.

I am new to python and have googled the subject and found that mod_python caches python modules (I think). However, I would expect that cache to be reset when the web service is restarted, but it doesn't appear to be. I'm saying this becasue I have a global variable that is a list, I test the list to see if a value exists and if it doesn't then I add it. The first time I ran this, it added three entries to the list. Subsequently, the list has three entries from the start.

For example:

globalList = []

class globalTest:

  def addToTheList(itemToAdd):
      print(len(globalTest))
      if itemToAdd not in globalList:
          globalList.append(itemToAdd)

  def doSomething():
    addToTheList("I am new entry one")
    addToTheList("I am new entry two")
    addToTheList("I am new entry three")

The code above is just an example of what I'm doing, not the actual code ;-). But essentially the doSomething() method is called by Trac. The first time it ran, it added all three entries. Now - even after restarting the web server the len(globalList) command is always 3.

I suspect the answer may be that my session (and therefore the global variable) is being cached because Trac is remembering my login details when I refresh the page in Trac after the web server restart. If that's the case - how do I force the cache to be cleared. Note that I don't want to reset the globalList variable manually i.e. globalList.length = 0

Can anyone offer any insight as to what is happening?
Thank you