[Reiko]

>considered as one of the best Reverse Shells
>no TTY

HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

I generally like you, but no. This is far from a good reverse shell.
It doesn't support any of the functionality of a real shell (bash, zsh, etc.) and handles its commands poorly. Checking if a string is in a received message does not equal checking what the user intended to do. For example, what if I wanted to do this:

Code:

mkdir cd ; ls ./cd

What would that do in your shell? Nothing like what I wanted.

Furthermore "except: pass" is not appropriate error handling in every situation. You could be introducing weird bugs into your code without raising any exceptions, and you could also be raising exceptions in the middle of critical sections.