Writing file data in Python - Mini Project: Build & Apply

Writing file data

📖 Scenario: You are creating a simple program to save a list of favorite fruits to a text file. This is useful when you want to keep a record of your favorite items on your computer.

🎯 Goal: Build a Python program that writes a list of fruits to a file called fruits.txt. Each fruit should be on its own line in the file.

📋 What You'll Learn

Create a list called fruits with the exact values: 'apple', 'banana', 'cherry'

Create a variable called filename and set it to 'fruits.txt'

Use a with open(filename, 'w') block to open the file for writing

Inside the with block, use a for loop with variable fruit to write each fruit followed by a newline to the file

Print the message 'Data written to fruits.txt' after writing the file

💡 Why This Matters

🌍 Real World

Saving data to files is a common task for storing information like lists, logs, or settings on your computer.

💼 Career

Knowing how to write data to files is important for many programming jobs, including data processing, automation, and software development.

1

Create the list of fruits

Create a list called fruits with these exact values: 'apple', 'banana', 'cherry'.

Python

# Create the list of fruits
# Your code here

Need a hint?

Use square brackets [] to create a list and separate items with commas.

2

Set the filename variable

Create a variable called filename and set it to the string 'fruits.txt'.

Python

fruits = ['apple', 'banana', 'cherry']
# Create the variable filename and set it to 'fruits.txt'
# Your code here

Need a hint?

Use an equals sign = to assign the string to the variable.

3

Write the fruits to the file

Use a with open(filename, 'w') block to open the file for writing. Inside the block, use a for loop with variable fruit to write each fruit followed by a newline character \n to the file.

Python

fruits = ['apple', 'banana', 'cherry']
filename = 'fruits.txt'
# Open the file for writing and write each fruit on its own line
# Your code here

Need a hint?

Use with open(filename, 'w') as file: to open the file. Then loop over fruits and write each fruit plus a newline.

4

Print confirmation message

Write a print statement to display the message 'Data written to fruits.txt' after the file writing block.

Python

fruits = ['apple', 'banana', 'cherry']
filename = 'fruits.txt'
with open(filename, 'w') as file:
    for fruit in fruits:
        file.write(fruit + '\n')
# Print confirmation message
# Your code here

Need a hint?

Use print('Data written to fruits.txt') to show the message.