Data rotation and cleanup in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to list all files in the directory.

Raspberry Pi

import os
files = os.[1]('.')
print(files)

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

Alistdir

Brename

Cmkdir

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.remove instead of os.listdir

Trying to create a directory instead of listing files

The os.listdir function lists all files and folders in the given directory.

2fill in blank

medium

Complete the code to delete a file named 'old.log'.

Raspberry Pi

import os
os.[1]('old.log')

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

Alistdir

Bremove

Cmkdir

Drename

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.listdir instead of os.remove

Trying to rename instead of delete

The os.remove function deletes a file given its path.

3fill in blank

hard

Fix the error in the code to rename 'temp.log' to 'backup.log'.

Raspberry Pi

import os
os.[1]('temp.log', 'backup.log')

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

Alistdir

Bremove

Cmkdir

Drename

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.remove instead of os.rename

Trying to list files instead of renaming

The os.rename function renames or moves a file from the old name to the new name.

4fill in blank

hard

Fill both blanks to create a dictionary with file names as keys and their sizes as values for files larger than 1000 bytes.

Raspberry Pi

import os
files = os.listdir('.')
sizes = {file: os.path.[1](file) for file in files if os.path.[2](file) and os.path.[1](file) > 1000}

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

Agetsize

Bexists

Disfile

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.path.exists instead of os.path.isfile

Not checking if the path is a file

os.path.getsize returns the size of a file. os.path.isfile checks if the path is a file.

5fill in blank

hard

Fill all three blanks to filter files with '.log' extension, get their sizes, and keep only those larger than 5000 bytes.

Raspberry Pi

import os
files = os.listdir('.')
log_files = {file: os.path.[1](file) for file in files if file.endswith('[2]') and os.path.[3](file) > 5000}

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

Agetsize

B.log

Disfile

Attempts:

3 left

💡 Hint

Common Mistakes

Not filtering by extension

Using wrong functions for size check

Use getsize to get file size, filter files ending with '.log', and check size greater than 5000 bytes.