When you open the program, go to the code.par file. This file takes the input Par code. I have readied a number of different code snippets that I used in the documentation to try them out. They are located in the examples folder.
Simply paste the examples in the code.par file, then go to the run.py file and run it. Note that the different modules of the compiler are present here, and one can comment out the various parts to test a specific module. The instructions or any output from the different modules will be printed in the console