This looks cool. I'm still getting familiar with appengine (started
looking at it two days ago.)
This small app shows how to use memcache and datastore.

I just read the whole code.

In IncrPageCount(),
  if memcache.get(memcache_id) == None:
    # initializes memcache if missing
    return GetPageCount(pagename)

However, in GetPageCount()
  val = memcache.get(memcache_id)
  if (val != None):
    return val

Obvious redundancy. That's interesting. I guess it's to check if the
page has been updated between calls?


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