Textbook definition of insanity is debugging in Spyder

While True:
Do:
#Comment out code
Run
If not BUG:
Comment back in
Else:
Print('Congratulations. You found it. Just kidding. It's not THIS line. It's just the combination of lines')

Does anyone have a suggestion for a good python debugger that allows jumping to statements, etc.?

Things that never happen
Customer: I really am happy with the service. The 99.999% availability is great. I completely understand that downtimes are necessary to keep the system up to date....