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Figure 5 . Question 13 possible output.
(59, 'A string')

Go to answer 13

Figure index

Listing index

What is the meaning of the following two images?

These images were inserted here simply to insert some space between the questions and the answers to keep them from being visible on the screen at thesame time.

Spacer image of a rabbit and a penguin.

This image was also inserted for the purpose of inserting space between the questions and the answers.

Spacer image of a penguin and some houses.

Answers

Answer 13

True.

Go back to Question 13

Answer 12

False. The actual output is shown in Figure 4 . While it is possible to extract and print an element from a tuple using square-bracket indexing, tuple indicesare zero based and the index shown in Listing 2 is out of range.

Figure 4 . Question 12 actual output.
Traceback (most recent call last): File "1359-1100r-12.py", line 4, in<module>print(aTuple[4])IndexError: tuple index out of range

Go back to Question 12

Answer 11

False. Even though you can sometimes omit the parentheses when creating a tuple, those parentheses are restored when the tuple is printed as shown in Figure 2 .

Figure 2 . Answer 11 actual output.
(3.14, 59, 'A string', 1024)

Go back to Question 11

Answer 10

False. From a syntax viewpoint, you typically create a tuple by placing a sequence of items inside a pair of enclosing parentheses and separating them by commas.

However, and this is important, the parentheses can be omitted when such omission will not lead to ambiguity.

Go back to Question 10

Answer 9

True.

Go back to Question 9

Answer 8

False. You can do just about anything with a tuple that you can do with a list, taking into account the fact that the tuple is immutable . Therefore, those list operations that change the value of a list in place cannotbe performed on a tuple. For example, you cannot call the append method on a tuple as you can on a list.

Go back to Question 8

Answer 7

False. While a tuple itself cannot be changed in place, the values contained in the objects that are referred to by the contents of the tuple can be changed (assuming that those objects are mutable) .

Go back to Question 7

Answer 6

True.

Go back to Question 6

Answer 5

True.

Go back to Question 5

Answer 4

False. Tuples are normally written as a sequence of items contained in parentheses.

Go back to Question 4

Answer 3

True.

Go back to Question 3

Answer 2

True.

Go back to Question 2

Answer 1

True. A tuple is immutable .

Go back to Question 1

Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Itse1359-1100r-Review
  • File: Itse1359-1100r.htm
  • Published: 10/19/14
  • Revised: 06/12/15
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technologyat Austin Community College in Austin, TX.

-end-

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Source:  OpenStax, Itse 1359 introduction to scripting languages: python. OpenStax CNX. Jan 22, 2016 Download for free at https://legacy.cnx.org/content/col11713/1.32
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