This course is archived · This course is now in read-only mode. You can’t register or make new submissions anymore, but your previous work and results are still available.

week02: strings en functies 0 of 8 activities solved
  1. ISBN
  2. And now for something completely upside down
  3. Nob's number puzzle
  4. Bible codes
  5. ISBN
  6. Vigenère cipher
  7. Humble-Nishiyama randomness game
  8. Rövarspråket
Next series week01: expressies, statements en controlestructuren
week02: strings en functies

ISBN

This course is archived, so you can no longer hand in solutions.

def isISBN(code): """ Returns True is the argument is a string that contains a valid ISBN-10 code, False otherwise. >>> isISBN('9971502100') True >>> isISBN('9971502108') False >>> isISBN('53WKEFF2C') False >>> isISBN(4378580136) False """ if __name__ == '__main__': import doctest doctest.testmod()