Question

all i am trying to do is figure out how serve a blob, by using the blobreferenceproperty stored in the datastore.

class data(webapp2.RequestHandler): 
def get(self):
    a = db.GqlQuery("SELECT * FROM UserPhoto")
    blob = a[0].blob_key()

    self.redirect('/Serve/%s' % blob())

class ServeHandler(blobstore_handlers.BlobstoreDownloadHandler):
def get(self, photo_key):
    if not blobstore.get(photo_key):
        self.error(404)
    else:
        self.send_blob(photo_key)

and the error i get is

TypeError: 'BlobInfo' object is not callable
INFO     2012-07-22 16:28:42,342 dev_appserver.py:2884] "GET /data HTTP/1.1" 500 -

and now im completely lost.

im fairly sure im not far away, because my code is only slightly modified from the working version of the tutorial, but ive tried everything i can think of and i would appreciate a nudge in the right direction.

thanks

Answer 1

Change blob() to blob in the redirect line.