title: Django default cache
body: <p>I'm importing and using cache as this:</p>
  <pre><code>from django.core.cache import cache
  cache.add('a','b',60)
  </code></pre>
  <p>I haven't defined any settings for the cache in settings.py ,then where does this cache come from and where is it stored.</p>
  <p><a href="https://docs.djangoproject.com/en/dev/topics/cache/" rel="nofollow noreferrer">Django documentation</a> says: &quot;This object is equivalent to caches['default']&quot;, but what is the default ?</p>