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python - How do I get a list of column names from a psycopg2 cursor?

I would like a general way to generate column labels directly from the selected column names, and recall seeing that python's psycopg2 module supports this feature.

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From "Programming Python" by Mark Lutz:

curs.execute("Select * FROM people LIMIT 0")
colnames = [desc[0] for desc in curs.description]

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