File modes and access types in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to open a file named 'data.txt' for reading.

Python

file = open('data.txt', '[1]')

Drag options to blanks, or click blank then click option'

Ax

Bw

Ca

Dr

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' which opens the file for writing and erases content.

Using 'a' which opens the file for appending.

The mode 'r' opens the file for reading only.

2fill in blank

medium

Complete the code to open a file named 'log.txt' for appending new data.

Python

file = open('log.txt', '[1]')

Drag options to blanks, or click blank then click option'

Aa

Bx

Cw

Dr

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' which overwrites the file content.

Using 'r' which only reads and does not allow writing.

The mode 'a' opens the file for appending, so new data is added at the end.

3fill in blank

hard

Fix the error in the code to open a file for writing only if it does not exist.

Python

file = open('newfile.txt', '[1]')

Drag options to blanks, or click blank then click option'

Ar

Bx

Cw

Da

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' which overwrites existing files.

Using 'a' which appends to existing files.

The mode 'x' creates a new file and opens it for writing, but fails if the file already exists.

4fill in blank

hard

Fill both blanks to open a file named 'report.txt' for reading and writing.

Python

file = open('report.txt', '[1][2]')

Drag options to blanks, or click blank then click option'

Ar

Bw

C+

Da

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w+' which truncates the file before writing.

Using 'a+' which opens for appending and reading.

The mode 'r+' opens the file for both reading and writing without truncating it.

5fill in blank

hard

Fill the blanks to create a dictionary comprehension that maps filenames to their sizes only if size is greater than 1000 bytes.

Python

sizes = {filename: os.path.getsize(filename) for filename in files if os.path.getsize(filename) [1] [2]

Drag options to blanks, or click blank then click option'

A>

B1000

C==

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' which checks for exact size.

Using '<' which checks for smaller sizes.

The condition checks if the file size is greater than 1000 bytes, so the operator is '>' and the number is 1000.