Allow Google's AppEngine Memcache library.

[Adam Blinkinsop]

Google's AppEngine contains ​a modification of the Memcache library that is functionally compatible.

Several changes would make it easy to drop this into the existing cache system. One possibility is adding it to the try/except block at the top of [source:trunk/django/core/cache/backends/memcached.py django.core.cache.backends.memcached]. There could also be a setting that determines which library to use (like the TEMPLATE_LOADERS or MIDDLEWARE_CLASSES settings). Which is more Django-friendly?

Even if this doesn't need to be in trunk, I think that it would be useful to have an easy way to add a new memcache interface, and it seems like a violation of DRY to create a new backends module for something so compatible. Thoughts?

[Adam Blinkinsop]

A patch that adds Google's memcache library to the memcached module.

[Jacob]

Needs a mention in the caching docs, but otherwise sounds like a fine idea.

[anonymous]

This trick is too implicit and unintuitive. Specifying Google memcached explicit is more pythonic. I think #7398 is better way to implement this.

[Adam Blinkinsop]

Replying to anonymous:

This trick is too implicit and unintuitive. Specifying Google memcached explicit is more pythonic. I think #7398 is better way to implement this.

I agree; how do we influence the design of #7398 so that we can use the existing backend with the new google.appengine.api.memcache module?

[anonymous]

Replying to blinks:

I agree; how do we influence the design of #7398 so that we can use the existing backend with the new google.appengine.api.memcache module?

You can ask this on the developers list or on the irc channel as ticket system is the wrong place for discussions.

[theillustratedlife]

I have posted a ​modified version of memcache.py that, in correlation with ​#7398, explicitly uses Google's memcache as the cache backend.

[Jannis Leidel]

Closing as wontfix since nowadays it's rather easy to subclass BaseMemcachedCache that was added in r15005
(source:django/trunk/django/core/cache/backends/memcached.py?rev=16001#L9) similar the default Memcache class (source:django/trunk/django/core/cache/backends/memcached.py?rev=16001#L146)