zip_data = zipit()
with files.open(zip_file, 'a') as f:
    f.write(zip_data)
files.finalize(zip_file)
blob_key = files.blobstore.get_blob_key(zip_file)
self.response.out.write('<a href="/getzip?key=%s">get zip</a>' % blob_key)
application = webapp.WSGIApplication([('/getzip', MainHandler)])

def main():
    util.run_wsgi_app(application)
if __name__ == '__main__':
    main()
Generate Zip Files and Store in GAE BlobStore