how to cache invalidation

[Sven R. Kunze]

Hi everybody,

I got another module up and running: xcache
Background described here: 
http://srkunze.blogspot.com/2016/03/safe-cache-invalidation.html

We needed a way to safely invalidate rlu_caches once a Web request has 
been finished. So, we came up with a solution using garbage collection 
and extended this to context managers for other purposes. Maybe, it can 
be useful to other Python devs as well. :-)

Let me know if you need help with it.

Best,
Sven