Can I download source code of already deployed app if I\'ve lost it\'s source code on my hard drive? I\'ve looked through application dashboard but couldn\'t find any option
No, you can't, and there are no plans to offer such functionality. Sorry - consider investing in a VCS and backups next time.
SDK 1.4.0 has this sort of feature (Python only):
- The developer who uploaded an app version can download that version's code using the appcfg.py download_app command. This feature can be disabled on a per application basis in the admin console, under the 'Permissions' tab. Once disabled, code download for the application CANNOT be re-enabled.