Can you comment on the incompatibilities?

I don't remember the exact details right now (will need to investigate again), but basically AppEngine-side code (e.g. in dev_appserver) referred to a specific module attribute which is no longer present in the new versions of googleapiclient or oauth2client.

You'll get a crash in a handler if you try to update any of these libraries and run an app in dev_appserver. The same crash also happens in the cloud.

This was a few months ago, I didn't have time to look into it recently. Things might have changed - they recently unified the default credentials workflow, and this bug might have been fixed.

Not really working on this bug right now, making available.

FTR, the CL doing the library update is https://codereview.chromium.org/1768993002.

Moving to Infra>SDK component since this is not a Infra>Monitoring specific issue. 

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

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We should be using vpython everywhere these days.