Python Programming: An Introduction to Computer Science
Python Programming: An Introduction to Computer Science
Chapter 5
Sequences: Strings, Lists, and Files
Python Programming, 2/e
1
Objectives
n To understand the string data type and how strings are represented in the computer.
n To be familiar with various operations that can be performed on strings through built-in functions and the string library.
Python Programming, 2/e
2
Objectives (cont.)
n To understand the basic idea of sequences and indexing as they apply to Python strings and lists.
n To be able to apply string formatting to produce attractive, informative program output.
n To understand basic file processing concepts and techniques for reading and writing text files in Python.
Python Programming, 2/e
3
Objectives (cont.)
n To understand basic concepts of cryptography.
n To be able to understand and write programs that process textual information.
Python Programming, 2/e
4
The String Data Type
n The most common use of personal computers is word processing.
n Text is represented in programs by the string data type.
n A string is a sequence of characters enclosed within quotation marks (") or apostrophes (').
Python Programming, 2/e
5
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