Python Script

Batch Subtitle Sentence Editor

This is a powerful utility script for anyone who works with subtitle files. It automates the process of removing specific, unwanted sentences (like advertisements, credits, or common annotations) from multiple .srt subtitle files simultaneously. The script searches through an entire folder, including all its subfolders, and creates cleaned versions of your files, leaving your originals untouched.

How to Use This Script:

  1. Save the Script: Click the "Copy Script" button to copy the Python code. Paste it into a text editor and save the file as `srt_sentence_deleter.py`.
  2. Organize Your Files: Place all the `.srt` files you wish to edit into a single parent folder. The script will automatically find all of them.
  3. Run from Terminal: Open your terminal or command prompt, navigate to the directory where you saved the script, and run it with the command: python srt_sentence_deleter.py
  4. Follow the Prompts: The script will ask for the path to your main SRT folder and the exact sentences you want to delete. You can enter multiple sentences separated by a semicolon (e.g., `Synced by John Doe; Subtitles from www.example.com`).
  5. Find Your Clean Files: After processing, a new folder named "updated" will appear in your original folder, containing all the modified subtitle files with their original folder structure intact. 

import os

def delete_sentences_in_srt_files():
    """
    Looks through all .srt files in a specified folder (and its subfolders),
    deletes certain sentences, and saves the updated files in an "updated" subfolder.
    """

    source_directory = input("Enter the path to the folder containing the .srt files: ")

    if not os.path.isdir(source_directory):
        print(f"Error: Directory '{source_directory}' not found.")
        return

    sentences_to_delete_input = input(
        "Enter the sentences to delete (separate multiple sentences with a semicolon ';'): "
    )
    sentences_to_delete = [s.strip() for s in sentences_to_delete_input.split(';') if s.strip()]

    if not sentences_to_delete:
        print("No sentences to delete were provided. Exiting.")
        return

    print(f"\nSentences to delete: {sentences_to_delete}")
    print("\nStarting file processing...")

    updated_files_count = 0

    for root, _, files in os.walk(source_directory):
        for filename in files:
            if filename.lower().endswith(".srt"):
                filepath = os.path.join(root, filename)
                print(f"Processing: {filepath}")

                try:
                    with open(filepath, 'r', encoding='utf-8') as f:
                        content = f.read()

                    original_content = content

                    for sentence in sentences_to_delete:
                        content = content.replace(sentence, '')

                    if content != original_content:
                        relative_path = os.path.relpath(root, source_directory)
                        updated_subfolder_path = os.path.join(source_directory, "updated", relative_path)
                        os.makedirs(updated_subfolder_path, exist_ok=True)

                        output_filepath = os.path.join(updated_subfolder_path, filename)

                        with open(output_filepath, 'w', encoding='utf-8') as f:
                            f.write(content)
                        print(f"  -> Updated and saved to: {output_filepath}")
                        updated_files_count += 1
                    else:
                        print("  -> No changes needed.")

                except Exception as e:
                    print(f"  -> Error processing {filepath}: {e}")

    print(f"\nProcessing complete. {updated_files_count} files were updated.")
    print(f"Updated files are saved in the 'updated' subfolder within '{source_directory}'.")

if __name__ == "__main__":
    delete_sentences_in_srt_files()
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