Deleting Files in Python

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Deleting Files in Python

Python provides built-in support for removing files and directories using the os module. This allows your program to manage files safely and efficiently.

[Image representing the Python os module interacting with a computer file system, showing a file being deleted or sent to the trash bin]

Removing a File

To delete a file, first import the os module and then use the os.remove() function.

Example: Delete a File

import os # Deletes the file permanently from the disk os.remove("old_data.txt")

# (Program runs silently if the file exists and is successfully deleted)

Check File Existence Before Deleting

To avoid errors (like a FileNotFoundError), it’s a highly recommended best practice to confirm that the file exists before attempting to remove it.

Example: Safe File Deletion

import os file_name = "old_data.txt" if os.path.isfile(file_name): os.remove(file_name) print("File deleted successfully.") else: print("File not found.")

File deleted successfully.

• Prevents runtime errors
• Safer for real-world applications

Deleting a Folder

To remove an empty directory, use the os.rmdir() method. (Note: If the folder contains files, this method will fail. You would need the shutil.rmtree() method to delete non-empty folders).

Example: Remove an Empty Folder

import os # Removes the folder only if it contains absolutely no files or subdirectories os.rmdir("temp_folder")

# (Program runs silently if the empty folder is successfully deleted)

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