Django cache created in one function not available to another?

So I have a function that sets cache (and successfully outputs it):

def push_cache:
cache.set('foo_cache', 'FUBAR!!!')
foodata = cache.get('foo_cache')
print(foodata) # this works

However when I try to access that cache from within a view and
directly output it it returns None:

def fetch_cache(request):
cache_data = cache.get('foo_cache')
return HttpResponse(cache_data) #this does not work.

Am i misunderstanding something fundamental in how cache works?

I am using the memcached backend in django 1.2.3

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