SRT Trilingual Translator

A command-line tool to translate .srt subtitle files into multiple languages (specifically Italian, Chinese, and English) using the DeepL API.

Features

• Parses standard .srt subtitle files.
• Automatically detects the source language of the subtitles.
• Translates text in efficient batches to respect API limits.
• Uses a tqdm progress bar to show translation status.
• Generates a new, combined .srt file with all three languages for each subtitle block.
• Securely loads your API key from a .env file.

Tech Stack

• Language: Python 3
• Libraries: deepl, langdetect, python-dotenv, tqdm

Installation

1. Clone the repository:

   git clone https://github.com/YIN-Renlong/srt-trilingual-translator.git
   cd srt-trilingual-translator

2. Create a virtual environment (recommended):

   python3 -m venv venv
   source venv/bin/activate

3. Install the required dependencies:

   pip install -r requirements.txt

4. Set up your API Key: Create a file named .env in the project root and add your DeepL API key:

   DEEPL_API_KEY="YOUR_DEEPL_API_KEY_HERE"
   

Usage

Run the script from your terminal, passing the path to one or more .srt files as arguments.

python3 srt_translator.py /path/to/your/file.srt

For multiple files:

python3 srt_translator.py movie1.srt movie2.srt

The script will create a new file for each input, named original-name_tri_it_zh_en-GB.srt, in the same directory.

License

This project is licensed under the MIT License - see the LICENSE file for details.