This is a bit of a meta-answer... many years ago I saw that I was not very good at writing error handling code for my scripts, so I (mostly) switched to this:

This is a bit of a meta-answer... many years ago I saw that I was not very good at writing error handling code for my scripts, so I (mostly) switched to this: http://angg.twu.net/eepitch.html http://angg.twu.net/eepitch.html that lets me execute my scripts line by line very easily.