Using GCS in GAE Local devserver

Question

Yesterday this code was working fine both in local and production servers:

import cloudstorage

def filelist(Handler):
    gs_bucket_name=\"/bucketname\"
            


        

Answer 1

I do believe that the cause of the problem is a bug in the local dev server (GoogleAppEngineLauncher), recently released. I'm experiencing something similar in the PHP runtime: GloudStorage fails locally

Answer 2

This is a problem with the latest release (1.9.18). For now, until it gets fixed, you can downgrade to 1.9.17 by downloading the installer from here and just running it: https://storage.googleapis.com/appengine-sdks/featured/GoogleAppEngineLauncher-1.9.17.dmg

As per the answer below, the 1.9.18 has been patched with a fix for this. If you still want to install the 1.9.17 version, please follow this link: https://storage.googleapis.com/appengine-sdks/deprecated/1917/GoogleAppEngineLauncher-1.9.17.dmg

Answer 3

Update: As of March 5th, 2105 this was fixed in the public release of 1.9.18, which may be a simpler way to get the fix.

Note: while the fix was in Python, issue can surface in Java, PHP and Go also because they use the Python local dev server code.

Answer 4

It's a known bug in the dev_appserver, where the SDK does not cope with the credentials already persisted in earlier versions. For me (on Ubuntu 15.10 with SDK 1.9.33) it helped to simply remove a file:

rm ~/.config/gcloud/application_default_credentials.json

as suggested in the bug issue filed by Jari Wiklund.