Python 1 Module 9 Lesson 4 Banner

Overview

The student will consider the following...

So far, when working with text files, we have seen how to open, read from and write to a text file. However, in the real world, it is often necessary to add or append data to text files that already exist. This is particularly important if we are updating or adding new data to the file. This process is known as appending. Python provides a way to open a file for appending data. However, there is not an append method, so you will simply use the write method to write the data to the file in append mode. We have seen how to move to the beginning of the file using the seek(0) method and will explore the remaining uses of the seek( ) method.

In this lesson, students will learn how to open files in append mode as well as append data to a text file and use the seek method more.

Objectives

The student will be able to...

open files for appending
write data to files
use the seek( ) method fully

Key Terms

The student should know the following vocabulary...

append
append modes (a, a+)
write( ) method
seek(offset, whence)

Activities

The student will perform the following activities...

Review the Module 9 Lesson 3 Practice Activity
Complete the Module 9 Lesson 4 Warmup Activity
Complete the Module 9 Lesson 4 Notes and Exploration Activity
Complete the Module 9 Lesson 4 Practice Activity
Complete the Module 9 Lesson 4 Quiz