Execute code on App Engine application initialization
Question: When running a Python Web Application on App Engine, we need to set up some
mechanism to execute some code before (or during) the application's
initialization. This means that, in the optimal solution, the code that we
need to run is executed as early as possible. The purpose of this is to allow
for the App Engine remote_api to be initialized before the **local** datastore
is accessed, so as to prevent datastore access conflicts.

This is a very rough example of what we're looking for:

    
    
    imports (including remote_api)
    
    def some_initialization_function_or_similar (args):
        some_init_function_calls(...)
    
        setup_remote_api(...)
    
        access_datastore_the_first_time(...)
    

Please take this question as reference to the scenario we're looking at:
[Using GAE remote api for debugging from localhost - Connecting too
late?](http://stackoverflow.com/questions/12588327/using-gae-remote-api-for-
debugging-from-localhost-connecting-too-late)


Answer: Assuming you have a single entry point (== script named in app.yaml) you can
just call the desired code after your imports but before you call your main()
function. This means it will be run only when the main script is being
imported, which is only on the first request (hitting that entry point).

If you have multiple entry points, try putting it in appengine_config.py. That
gets loaded pretty early.

