IOError: [Errno 13] file not accessible with Google AppEngine 1.6.1

Question

Maybe it\'s a bug, but I\'m posting here anyway.

I get the following issue on my local AppEngine testing server:

WARNING  2012-01-10 06:08:40,336 rdb         


        

Answer 1

In some cases, this error is caused by dev_appserver.py returning fail for the open call when the file name matches a skip_files pattern in app.yaml. Check app.yaml even when running dev_appserver.py locally.