I solved this already, I\'m just posting it here because I couldn\'t figure it out with google, or by reading the docs. I only found it by accident.
To add a breakpo
Completing the answer supplied by the OP: after setting the breakpoint - you must turn on IDLE's debug mode (using debug --> debugger). When you run the program, press "Go" in the debug window that opens up and IDLE will stop at the breakpoint.