What does s mean in a Python format string

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What does %s mean in Python? And what does the following bit of code do?

For instance...

 if len(sys.argv) < 2:
     sys.exit('Usage: %s database-name' % sys.argv[0])

 if not os.path.exists(sys.argv[1]):
     sys.exit('ERROR: Database %s was not found!' % sys.argv[1])
May 9, 2022 in Python by Edureka
• 13,620 points

edited Mar 4 100 views

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