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# example4.py
from datetime import datetime
def main(dsn, table='product', today=datetime.today()):
"Do something on the database"
print(dsn, table, today)
if __name__ == '__main__':
import sys
args = sys.argv[1:]
if not args:
sys.exit('usage: python %s dsn' % sys.argv[0])
elif len(args) > 2:
sys.exit('Unrecognized arguments: %s' % ' '.join(argv[2:]))
main(*args)
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