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Handle your errors properly
(beehaw.org)
I have been troubleshooting this script for weeks and finally found it was trying to divide by zero.
Makes me think of devs who debug with print statements instead of a debugger and breakpoints.
Well, Kernighan himself said "The most effective debugging tool is still careful thought, coupled with judiciously placed print statements."
If it was good enough for him...
/me glances sideways at codebase
IMO there's a place for both. A print statement will reveal a flaw in the programmer's thinking regarding the control flow of the program and the state at that time. If a print statement gives something unexpected, you know exactly where to look in the debugger. If it gives you what you expected, it reveals the problem may be elsewhere