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This module provides a preview of code that will be explained in more detail in the module titled Itse1359-1070-Strings 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 Itse1359-1070-Strings Part 2 in this book .

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: The Figures and Listings in this module arepresented in plain text format and should be accessible using an audio screen reader or a braille display.)



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

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

Figure 1. Program output.
1.T 2.s3.This 4.string5.This 6.string7.This is a string 8.This is a string9.Empty: 10.tri11.16 12.This is a string


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 instance of #?? with oneor more statements. Feel free to run the program at any point in the process in order to compare your output with the required output shown in Figure 1 .

Listing 1. Program code template.
# File String01.py # Rev 03/21/15# Copyright 2015, R. G. Baldwin # Illustrates indexing and# slicing strings ##------------------------------- aStr = "This is a string""""Print the output shown on Line 1.""" #??"""Print the output shown on Line 2.""" #??"""Print the output shown on Line 3.""" #??"""Print the output shown on Line 4.""" #??"""Print the output shown on Line 5 using different syntax than 3 above.""" #??"""Print the output shown on Line 6 using different syntax than 4 above.""" #??"""Print the output shown on Line 7 as the concatenation of two slices of aStr."""#?? """Print the output shown on Line 8 as a single slice of aStr."""#?? """Print the output shown on Line 9 as the concatenation of the word, the colon,a space, and a slice of aStr.""" #??"""Print the output shown on Line 10 as a slice counting backwards from the right end of aStr."""#?? """Print the length of aStr as shown on Line 11."""#?? print("12." + aStr)

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 Itse1359-1070-Strings 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: Itse1359-1070p-Preview-Strings Part 2
  • File: Itse1359-1070p.htm
  • Published: 03/21/15
  • Revised: 03/26/15

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

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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