This is a reversible debugger, it records all the state needed to run your program backwards in time from a breakpoint so you can see find where a variable assi

This is a reversible debugger, it records all the state needed to run your program backwards in time from a breakpoint so you can see find where a variable assignment went wrong. You might want to try out the standard Python stdlib command-line debugger called pdb first, once you get used to that try this.