Working with operating system paths in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to join two parts of a file path using the os module.

Python

import os
path = os.path.[1]('folder', 'file.txt')
print(path)

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

Abasename

Bsplit

Cexists

Djoin

Attempts:

3 left

💡 Hint

Common Mistakes

Using os.path.split which breaks a path instead of joining.

Using os.path.exists which checks if a path exists, not joining.

The os.path.join function combines parts of a path correctly for your operating system.

2fill in blank

medium

Complete the code to get the directory name from a file path.

Python

import os
folder = os.path.[1]('/home/user/file.txt')
print(folder)

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Adirname

Bbasename

Cjoin

Dsplitext

Attempts:

3 left

💡 Hint

Common Mistakes

Using basename which returns the file name, not the folder.

Using splitext which separates file extension.

os.path.dirname returns the directory part of a file path.

3fill in blank

hard

Fix the error in the code to check if a path exists.

Python

import os
path = '/tmp/test.txt'
exists = os.path.[1](path)
print(exists)

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Aexists

Bjoin

Cisfile

Ddirname

Attempts:

3 left

💡 Hint

Common Mistakes

Using join which combines paths, not checks existence.

Using dirname which gets folder name, not existence.

os.path.exists checks if the given path exists on the system.

4fill in blank

hard

Fill both blanks to create a dictionary with file names as keys and their extensions as values.

Python

import os
files = ['doc.txt', 'image.png', 'script.pyc']
ext_dict = {f[1]: os.path.[2](f)[1] for f in files}
print(ext_dict)

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A[:-4]

Bsplitext

Cbasename

D[-4:]

Attempts:

3 left

💡 Hint

Common Mistakes

Using basename which returns full file name including extension.

Using wrong slicing that does not remove extension correctly.

We slice the file name to remove the last 4 characters (extension) for the key, and use splitext to get the extension as value.

5fill in blank

hard

Fill all three blanks to filter files with '.txt' extension and get their absolute paths.

Python

import os
files = ['a.txt', 'b.py', 'c.txt']
txt_paths = [os.path.[1](f) for f in files if os.path.splitext(f)[[2]] == [3]]
print(txt_paths)

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

Aabspath

B1

C'.txt'

Dbasename

Attempts:

3 left

💡 Hint

Common Mistakes

Using basename which returns only file name, not full path.

Using index 0 which is file name without extension.

Comparing extension to wrong string.

os.path.abspath gets the full path, splitext(f)[1] gets the extension, and we compare it to '.txt' to filter only text files.