jpayne@0: #!/usr/bin/env python3
jpayne@0: 
jpayne@0: import csv
jpayne@0: import sys
jpayne@0: 
jpayne@0: def main(headers):
jpayne@0: 	rows = csv.DictReader(sys.stdin, delimiter='\t', dialect='excel-tab')
jpayne@0: 	if not any([str(header) in rows.fieldnames for header in headers]):
jpayne@0: 		raise ValueError("Couldn't find any of supplied headers ({}) in the table.".format(','.join(['"{}"'.format(header) for header in headers])))
jpayne@0: 	items = list(rows)
jpayne@0: 	items.sort(key=lambda d: [d.get(h) or "" for h in headers])
jpayne@0: 	wr = csv.DictWriter(sys.stdout, dialect='excel-tab', fieldnames=rows.fieldnames)
jpayne@0: 	wr.writeheader()
jpayne@0: 	wr.writerows(items)
jpayne@0: 	sys.stdout.flush()
jpayne@0: 
jpayne@0: if __name__ == '__main__':
jpayne@0: 	main(sys.argv[1:])