What makes a good programmer?

Some casual surfing led me to this article from a couple of years ago, titled "How to recognize a good programmer". It was a nice read, but as many in the comments pointed out, the criteria the author set forth most likely describe himself and are not really useful as rules-of-thumb on how to recognize a good programmer.

It got me thinking though, on what are the attributes I consider useful in fellow programmers. So what makes a good programmer?
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