// [START image_resize]
from google.appengine.api import capabilities

def StoreUploadedProfileImage(self):
    uploaded_image = self.request.get('img')
    # If the images API is unavailable, we'll just skip the resize.
    if capabilities.CapabilitySet('images').is_enabled():
        uploaded_image = images.resize(uploaded_image, 64, 64)
    store(uploaded_image)
// [END image_resize]

// [START intro]
from google.appengine.ext import db

def RenderHTMLForm(self):
    if not db.WRITE_CAPABILITY.is_enabled():
        # Datastore is in read-only mode.
// [END intro]