RotNN.py is a python module that allows the user to do rotational encryption and de-encryption to obfuscate text. The default functionality is the same as rot13, however you can rotate the text any amount you wish: 15, 21, 4... (Hence the NN.) RotNN also includes two functions, srotate and wrotate, which operate on the entire (UNIX, at least) printable character set. They utilize rotation also, only on more than just A-Z and a-z.
