Lingo.dev Python SDK

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A powerful Python SDK for the Lingo.dev localization platform. This SDK provides easy-to-use methods for localizing various content types including plain text, objects, and chat sequences.

Features

• 🌍 Multiple Content Types: Localize text, objects, and chat sequences
• 🚀 Batch Processing: Efficient handling of large content with automatic chunking
• 🔄 Progress Tracking: Optional progress callbacks for long-running operations
• 🎯 Language Detection: Automatic language recognition
• 📊 Fast Mode: Optional fast processing for larger batches
• 🛡️ Type Safety: Full type hints and Pydantic validation
• 🧪 Well Tested: Comprehensive test suite with high coverage
• 🔧 Easy Configuration: Simple setup with minimal configuration required

Installation

pip install lingodotdev

Quick Start

from lingodotdev import LingoDotDevEngine

# Initialize the engine
engine = LingoDotDevEngine({
    'api_key': 'your-api-key-here'
})

# Localize a simple text
result = engine.localize_text(
    "Hello, world!",
    {
        'source_locale': 'en',
        'target_locale': 'es'
    }
)
print(result)  # "¡Hola, mundo!"

# Localize an object
data = {
    'greeting': 'Hello',
    'farewell': 'Goodbye',
    'question': 'How are you?'
}

result = engine.localize_object(
    data,
    {
        'source_locale': 'en',
        'target_locale': 'fr'
    }
)
print(result)
# {
#     'greeting': 'Bonjour',
#     'farewell': 'Au revoir',
#     'question': 'Comment allez-vous?'
# }

API Reference

LingoDotDevEngine

Constructor

engine = LingoDotDevEngine(config)

Parameters:

• config (dict): Configuration dictionary with the following options:
  • api_key (str, required): Your Lingo.dev API key

Methods

localize_text(text, params, progress_callback=None)

Localize a single text string.

Parameters:

• text (str): The text to localize
• params (dict): Localization parameters
  • source_locale (str): Source language code (e.g., 'en')
  • target_locale (str): Target language code (e.g., 'es')
• progress_callback (callable): Progress callback function

Returns: str - The localized text

Example:

result = engine.localize_text(
    "Welcome to our application",
    {
        'source_locale': 'en',
        'target_locale': 'es'
    }
)

localize_object(obj, params, progress_callback=None)

Localize a Python dictionary with string values.

Parameters:

• obj (dict): The object to localize
• params (dict): Localization parameters (same as localize_text)
• progress_callback (callable): Progress callback function

Returns: dict - The localized object with the same structure

Example:

def progress_callback(progress, source_chunk, processed_chunk):
    print(f"Progress: {progress}%")

result = engine.localize_object(
    {
        'title': 'My App',
        'description': 'A great application',
        'button_text': 'Click me'
    },
    {
        'source_locale': 'en',
        'target_locale': 'de'
    },
    progress_callback=progress_callback
)

batch_localize_text(text, params)

Localize a text string to multiple target languages.

Parameters:

• text (str): The text to localize
• params (dict): Batch localization parameters
  • source_locale (str): Source language code
  • target_locales (list): List of target language codes

Returns: list - List of localized strings in the same order as target_locales

Example:

results = engine.batch_localize_text(
    "Welcome to our platform",
    {
        'source_locale': 'en',
        'target_locales': ['es', 'fr', 'de', 'it']
    }
)

localize_chat(chat, params, progress_callback=None)

Localize a chat conversation while preserving speaker names.

Parameters:

• chat (list): List of chat messages with name and text keys
• params (dict): Localization parameters (same as localize_text)
• progress_callback (callable, optional): Progress callback function

Returns: list - Localized chat messages with preserved structure

Example:

chat = [
    {'name': 'Alice', 'text': 'Hello everyone!'},
    {'name': 'Bob', 'text': 'How are you doing?'},
    {'name': 'Charlie', 'text': 'Great, thanks for asking!'}
]

result = engine.localize_chat(
    chat,
    {
        'source_locale': 'en',
        'target_locale': 'es'
    }
)

recognize_locale(text)

Detect the language of a given text.

Parameters:

• text (str): The text to analyze

Returns: str - The detected language code (e.g., 'en', 'es', 'fr')

Example:

locale = engine.recognize_locale("Bonjour, comment allez-vous?")
print(locale)  # 'fr'

whoami()

Get information about the current API key.

Returns: dict or None - User information with 'email' and 'id' keys, or None if not authenticated

Example:

user_info = engine.whoami()
if user_info:
    print(f"Authenticated as: {user_info['email']}")
else:
    print("Not authenticated")

Error Handling

The SDK raises the following exceptions:

• ValueError: For invalid input parameters
• RuntimeError: For API errors and network issues
• pydantic.ValidationError: For configuration validation errors

Example:

try:
    result = engine.localize_text(
        "Hello world",
        {'target_locale': 'es'}  # Missing source_locale
    )
except ValueError as e:
    print(f"Invalid parameters: {e}")
except RuntimeError as e:
    print(f"API error: {e}")

Advanced Usage

Using Reference Translations

You can provide reference translations to improve consistency:

reference = {
    'es': {
        'greeting': 'Hola',
        'app_name': 'Mi Aplicación'
    },
    'fr': {
        'greeting': 'Bonjour',
        'app_name': 'Mon Application'
    }
}

result = engine.localize_object(
    {
        'greeting': 'Hello',
        'app_name': 'My App',
        'welcome_message': 'Welcome to My App'
    },
    {
        'source_locale': 'en',
        'target_locale': 'es',
        'reference': reference
    }
)

Progress Tracking

For long-running operations, you can track progress:

def progress_callback(progress, source_chunk, processed_chunk):
    print(f"Progress: {progress}%")
    print(f"Processing: {len(source_chunk)} items")
    print(f"Completed: {len(processed_chunk)} items")

# Large dataset that will be processed in chunks
large_data = {f"key_{i}": f"Text content {i}" for i in range(1000)}

result = engine.localize_object(
    large_data,
    {
        'source_locale': 'en',
        'target_locale': 'es'
    },
    progress_callback=progress_callback
)

Development

Setup

git clone https://github.com/lingodotdev/sdk-python.git
cd sdk-python
pip install -e ".[dev]"

Running Tests

# Run all tests
pytest

# Run with coverage
pytest --cov=src/lingo_dev_sdk --cov-report=html

# Run only unit tests
pytest tests/test_engine.py

# Run integration tests (requires API key)
export LINGO_DEV_API_KEY=your-api-key
pytest tests/test_integration.py

Code Quality

# Format code
black .

# Lint code
flake8 .

# Type checking
mypy src/lingo_dev_sdk

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Make your changes and add tests
4. Commit your changes using Conventional Commits:
   • feat: add new feature
   • fix: resolve bug
   • docs: update documentation
   • style: format code
   • refactor: refactor code
   • test: add tests
   • chore: update dependencies
5. Push to the branch (git push origin feature/amazing-feature)
6. Open a Pull Request

Release Process

This project uses automated semantic releases:

• Pull Requests: Automatically run tests and build checks
• Main Branch: Automatically analyzes commit messages, bumps version, updates changelog, and publishes to PyPI
• Commit Messages: Must follow Conventional Commits format
  • feat: triggers a minor version bump (0.1.0 → 0.2.0)
  • fix: triggers a patch version bump (0.1.0 → 0.1.1)
  • BREAKING CHANGE: triggers a major version bump (0.1.0 → 1.0.0)

Development Workflow

1. Create a feature branch
2. Make changes with proper commit messages
3. Open a PR (triggers CI/CD)
4. Merge to main (triggers release if applicable)
5. Automated release to PyPI

Support

• 📧 Email: [email protected]
• 🐛 Issues: GitHub Issues
• 📖 Documentation: https://lingo.dev/sdk

Changelog

See CHANGELOG.md for a detailed history of changes.

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