Ah, I see.  It's safe because a new request will not be processed by
the same instance of the python interpreter until the previous request
has fully completed, right?

Thanks, Ryan!

On Dec 16, 7:37 pm, Ryan Barrett <goo...@ryanb.org> wrote:
> hi alex! you're right to be cautious, but happily, requests are not
> handled by different threads. our python interpreters are single
> threaded, and handle only a single request at a time. more:
>
> http://code.google.com/appengine/docs/python/sandbox.htmlhttp://groups.google.com/group/google-appengine/browse_thread/thread/...
>
> given that, you don't need to worry about concurrent accesses to the
> query global variable, so this should be safe. even better, fetch() re-
> runs the query from the beginning, so if the parameters are the same
> across requests, you don't even need to bind() each time.
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