“ImportError: No module named webapp2” after Linux SDK upgrade (1.9.35 -> 1.9.38)

Question

After upgrading my GAE Python Linux SDK from version 1.9.35 to 1.9.38 my application stopped working, all requests are failing in similar manner:

ERROR    20         


        

Answer 1

Update: The issue was fixed in SDK version 1.9.40.

The issue is already known to Google, introduced in 1.9.37:

• the acknowledged report with more info
• tracked as GAE Issue 12963.

From the report thread, as per Jon Parrot:

Thanks everyone for reporting this. We've reproduced the issue and and fix is incoming. It won't be in the next SDK release (38), but likely will be in 39 or 40.

Until the fix is released an earlier unaffected SDK version (like 1.9.36) can be found here.