How to specify a maximum image size with get_serving_url

Some pictures, not all, exceed the maximum width and he开发者_开发问答ight that I want.

Is there a way to specify the max image size with get_serving_url()?

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Yes, size is an optional 2nd argument on get_serving_url. You can specify an integer between 0 and 1600; if either the height or width exceed this, the image is resized down to fit.

http://code.google.com/appengine/docs/python/images/functions.html