Running the Google App Engine SDK offline without an Internet connection

I was without a Net connection today at one point and needed to run the development server for my Google App Engine app and the server kept getting stuck while trying to check for updates.

Checking the options for, I couldn't find a setting to tell it to stop checking for updates to the SDK.

When back online, some quick googling turned up the existence of an .appcfg_nag file that creates after it is initially run. Searching around my computer, I found that the file in question is created in your home folder. A quick rm ~/.appcfg_nag, followed by running the server and telling it not to check for updates remedied the issue.

A simple thing, perhaps, but it does make a big difference in that I can now work while offline with the SDK too.