Displaying Directory Contents - Python Programming Exercise

import os

def list_directory_contents(directory, file_type=None, min_size=None, max_size=None):
    """Display the contents of a directory with filtering options."""
    try:
        # Check if the directory exists
        if not os.path.isdir(directory):
            print(f"Error: The directory '{directory}' does not exist or is not accessible.")
            return

        # List all files and subdirectories
        all_items = os.listdir(directory)

        # Filter items based on the file type
        filtered_items = []
        for item in all_items:
            item_path = os.path.join(directory, item)
            
            if os.path.isfile(item_path):
                # Filter by file type (extension)
                if file_type and not item.endswith(file_type):
                    continue
                # Filter by file size if specified
                if min_size and os.path.getsize(item_path) < min_size:
                    continue
                if max_size and os.path.getsize(item_path) > max_size:
                    continue
                filtered_items.append((item, "File"))
            elif os.path.isdir(item_path):
                filtered_items.append((item, "Directory"))

        # Display the filtered contents
        if filtered_items:
            print(f"\nContents of '{directory}':")
            for item, item_type in filtered_items:
                print(f"{item} ({item_type})")
        else:
            print(f"\nNo matching files or directories found in '{directory}'.")

    except PermissionError:
        print(f"Error: Permission denied to access '{directory}'.")
    except Exception as e:
        print(f"Error: {e}")

def main():
    """Main function to interact with the user."""
    # Get user input for the directory
    directory = input("Enter the directory path: ")

    # Get optional filters for file type and file size
    file_type = input("Enter file type to filter by (e.g., .txt, .jpg) or leave blank for no filter: ").strip()
    if file_type == "":
        file_type = None

    try:
        min_size = int(input("Enter minimum file size in bytes (or 0 for no minimum): ").strip())
    except ValueError:
        min_size = 0

    try:
        max_size = int(input("Enter maximum file size in bytes (or 0 for no maximum): ").strip())
    except ValueError:
        max_size = 0

    # List the directory contents with the given filters
    list_directory_contents(directory, file_type, min_size, max_size)

# Run the program
if __name__ == "__main__":
    main()

 Output

Enter the directory path: /path/to/directory
Enter file type to filter by (e.g., .txt, .jpg) or leave blank for no filter: .txt
Enter minimum file size in bytes (or 0 for no minimum): 1000
Enter maximum file size in bytes (or 0 for no maximum): 5000

Contents of '/path/to/directory':
file1.txt (File)
file2.txt (File)
subfolder1 (Directory)
subfolder2 (Directory)