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Aya Bouchiha
Aya Bouchiha

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6 Helpful OS Module Methods

#python #codenewbie #beginners #programming

Hello,
I'm Aya Bouchiha,
today,
I'm going to share with you 6 useful os module methods.
Firstly, we need to know that the os module is built-in in python, it is used for interacting with the operating system.

getcwd()

getcwd(): this method helps you to get the absolute path of the current working directory as a string.

import os print(os.getcwd()) # C:\Users\AyaBouchiha\Desktop\posts
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os.mkdir()

mkdir(): lets you create a new directory if it does not exists, else it raises an error (FileExistsError)

import os os.mkdir('python') # done :)  os.mkdir('python') # error (FileExistsError)
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os.rmdir()

rmdir(): helps you to remove an empty directory.

import os # done os.mkdir('python/newFolder') # done os.rmdir('python/newFolder') # error (FileNotFoundError) os.rmdir('something/does-not-exists') # error (NotADirectoryError) os.rmdir('user.json')
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os.remove()

remove(): lets you delete a file. If it does not exists, this method raises an error.

import os # done os.remove('posts/python/test.py') # error(FileNotFoundError) os.remove('posts/python/test.py')
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os.path.isfile()

isfile(): returns True if the given path is a regular file, otherwise It returns False.

import os my_file_path = 'posts/python/os_module.py' # True print(os.path.isfile(my_file_path)) file_does_not_exists_path = 'posts/python/os_module.json' # False print(os.path.isfile(file_does_not_exists_path)) directory_path = 'posts/python' # False print(os.path.isfile(directory_path))
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os.listdir()

listdir(): returns a list that contains all files and directories names that exist in the specified path.

import os print(os.listdir('posts/')) # Output: # [ # '5_list_python_methods.md', # 'js_resources.md', # 'MapObject.md', # 'os_module.md', # 'os_module.py', # 'python' # ]
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Summary

  • getcwd(): returns the absolute path of the current working directory as a string.

  • mkdir(): creates a new directory.

  • rmdir(): removes an empty directory.

  • remove(): deletes a file.

  • isfile(): returns True if the given path is a regular file.

  • listdir(): returns a list that contains all files and directories names that exist in the specified path.

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