具有生存时间的Python内存缓存 [英] Python in-memory cache with time to live

问题描述

我有多个运行同一进程的线程，它们必须能够互相通知，某些东西在接下来的n秒钟内不应进行处理，如果这样做的话，这不是世界末日。

I have multiple threads running the same process that need to be able to to notify each other that something should not be worked on for the next n seconds its not the end of the world if they do however.

我的目标是能够将字符串和TTL传递到缓存，并能够将列表中的所有缓存字符串提取。缓存可以存在于内存中，TTL不会超过20秒。

My aim is to be able to pass a string and a TTL to the cache and be able to fetch all the strings that are in the cache as a list. The cache can live in memory and the TTL's will be no more than 20 seconds.

有人对如何实现此目标有任何建议吗？

Does anyone have a any suggestions for how this can be accomplished?

推荐答案

您可以使用 expiringdict 模块：

You can use the expiringdict module:

库的核心是 ExpiringDict 类，这是一个有序字典，具有用于缓存目的的自动过期值。

The core of the library is ExpiringDict class which is an ordered dictionary with auto-expiring values for caching purposes.

在描述中，他们没有谈论多线程，因此为了避免混乱，请使用 Lock Lock。

In the description they do not talk about multithreading, so in order not to mess up, use a Lock.

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