On a couple of occasions I have been debugging some script which uses an external datafile for input. I had the script and the datafile up in the editor, laboriously following the execution path, adding print here and there and nothing makes sense. You get the picture.
Hey, even basic stuff don't come out as expected. Only Hubris refrained me seeking help as I sensed something was "rotten in Denmark".
Only after too much time was spent I realized the the datafile I was viewing and the script was reading was not the same. In fact there was never anything wrong with the script in the first place!!
So I guess the morale of the story is that a "bug" can be caused by the script, data or yourself, more seldom in my experience by hardware or the OS.
Error, mistake, slip, blunder, lapse? I prefer to think of it as an 'unfortunate juxtaposition of circumstances'.
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