ERRATA (Python Programming: An Introduction to Computer Science, 4th. Ed.)


Errata for first printing
--------------------------

Chapter 5
----------

Page 148: The last sentence of the second full paragraph reads: "In
          this example, s will get the first value listed in the
          return (sum) and d will get the second value (diff)."

	  The values are misnamed. The sentence should read: "In
          this example, s will get the first value listed in the
          return (plus) and d will get the second value (minus)."


Chapter 7
---------

Page 232: In Exercise #7, the parenthetical statement "(separated by a
          space)" should be deleted.



Chapter 9
----------

Page 271: In the last sentence of the last full paragraph "we some"
     	  should be "we need some"
	  
Page 294: Exercise 9 should be an exercise for Chapter 13.



Chapter 12
-----------

Page 406: In the code at the top, the last two print statements in
          main() are missing parentheses around the parameters. They
          should read:

	  	 print(c1.clown(3))
		 print(c2.clown(c1.clown(2)))