SimulRPi (0.1.0a0) is a Python library that partly fakes RPi.GPIO and simulates some I/O devices on a Raspberry Pi (RPi).
Simulating LEDs on an RPi via a terminal
Each dot represents a blinking LED connected to an RPi and the number between brackets is the associated GPIO channel number. Here the LED on channel 22 toggles between on and off when a key is pressed.
See the README for more info about the library.