File modes and access types in Python - Mini Project: Build & Apply

File modes and access types

📖 Scenario: You are working on a simple program that saves and reads notes from a text file. You will learn how to open files in different modes to write and read data.

🎯 Goal: Build a program that creates a file, writes a note, reads the note back, and shows the content on the screen using correct file modes.

📋 What You'll Learn

Create a file and write text to it using the correct file mode

Open the file to read the text back

Use the correct file modes for writing and reading

Print the content read from the file

💡 Why This Matters

🌍 Real World

Saving and reading notes or logs is common in many apps like diaries, to-do lists, or data logging.

💼 Career

Understanding file modes is essential for jobs involving data processing, automation, and software development.

1

Create and open a file in write mode

Create a variable called file and open a file named notes.txt in write mode using open('notes.txt', 'w').

Python

# Create a variable called file and open 'notes.txt' in write mode
# Your code here

Need a hint?

Use 'w' mode to open a file for writing. This will create the file if it does not exist.

2

Write a note to the file

Use the write method on the file variable to write the string 'My first note.' to the file.

Python

file = open('notes.txt', 'w')
# Write 'My first note.' to the file
# Your code here

Need a hint?

Use file.write('My first note.') to add text to the file.

3

Close the file and reopen in read mode

Close the file using file.close(). Then create a new variable called file and open notes.txt in read mode using open('notes.txt', 'r').

Python

file = open('notes.txt', 'w')
file.write('My first note.')
# Close the file
# Reopen the file in read mode
# Your code here

Need a hint?

Always close a file after writing. Use file.close(). Then open it again with 'r' mode to read.

4

Read and print the file content

Read the content of the file using file.read() and print it using print(). Then close the file.

Python

file = open('notes.txt', 'w')
file.write('My first note.')
file.close()
file = open('notes.txt', 'r')
# Read the content and print it
# Close the file
# Your code here

Need a hint?

Use content = file.read() to get the text, then print(content) to show it.