In addition to tolerance of frustration and tenacity (as has been mentioned several times here already), I'll go with being good at the old Sesame Street game "

In addition to tolerance of frustration and tenacity (as has been mentioned several times here already), I'll go with being good at the old Sesame Street game "One of these things is not like the other, One of these things is not the same" - I feel like I'm playing that game a lot when I'm debugging.