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This module provides a preview of code that will be explained in more detail in the module titled Itse1359-1090-Lists Part 2

Table of contents


This module is one in a collection of modules on Python designed for teaching ITSE 1359 Introduction to Scripting Languages: Python at Austin Community College in Austin, TX. This module provides a preview of code that will beexplained in more detail in the module titled Itse1359-1090-Lists Part 2 .

Viewing tip

I recommend that you open another copy of this module in a separate browser window and use the following links to easily find and view the Figuresand Listings while you are reading about them.

(Note to blind and visually impaired students: Most of the Figures and all of the Listings in this module are presented in plain text format and shouldbe accessible using an audio screen reader or a braille display. Note however that the required indentation may not be properly represented by an audio screenreader.)


  • Figure 1 . Program output for replacing a slice in a list.


  • Listing 1 . Program code template for replacing a slice in a list.

General background information

This module provides a preview of code that will be explained in more detail in a future module. The purpose of this module is to provide an opportunity foryou to work through and to think about the code on your own before reading the explanation. This should give you a clear assessment of what you already knowand what you don't yet understand. The hope is that by working through and thinking about the code before reading the explanation, you will be betterprepared to retain the knowledge later when you do read the explanation.

This approach is based loosely on the concept of Intentional Programming as incorporated in the instructor-led Java programming courseware that is available from TKP .

Discussion and sample code

Program output for replacing a slice in a list

You will be writing code based on instructions provided in comments. Once this program is completed, it should produce the outputshown in Figure 1 .

Figure 1. Program output for replacing a slice in a list.
1. [100, 200, 300, 400, 500] 2. 53. [100, 2, 4, 8, 16, 32, 64, 500] 4. 85. end


Copy the code template from Listing 1 into your favorite Python text editor or IDE. Then make the modifications described in the comments by replacing each instanceof #?? with one or more statements. Feel free to run the program at any point in the process inorder to compare your output with the required output shown in Figure 1 .

Listing 1. Program code template for replacing a slice in a list.
listA = [100,200,300,400,500] """Print the list as shown on Line 1."""#?? """Print length of list shown on Line 2."""#?? """Modify and print the list as shown on Line 3."""#?? """Print length of list shown on Line 4."""#?? print("5.","end")

Answers in the back of the book

If you get stuck and are unable to successfully complete one of the modifications, you will find the correct code in the module titled Itse1359-1090-Lists Part 2 except that the code in that module does not produce the line numbers shown in Figure 1 .


This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Itse1359-1090pa-Preview-01-Lists Part 2
  • File: Itse1359-1090pa.htm
  • Published: 03/25/15

Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware 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 of the module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.

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


Questions & Answers

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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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