To get familiar with the debugger, I have loaded this program: import math
def s1(x, y): a = (x + y) print("Answer from s1"), a return def s2(x, y): b = (x - y) print("This comes from s2"), b #print z print("call from s2: "), s1(x, y) return I am trying to debug: I press shift-F9 and F7. I end up in the interpreter where I enter s2 (1, 2). >From that point if I press F7, the program restart all over. If I press Enter, the program gets out of debug mode. Please help me figuring out how I can use the dbugger. You are welcome to send a sound file if this is easier for you. Thanks ray -- http://mail.python.org/mailman/listinfo/python-list