flufl-i18n

import os from flufl.i18n import initialize # --- Create a dummy messages.py for demonstration --- # In a real application, this would be a Python package # containing your compiled .mo files in subdirectories. # e.g., messages/en/LC_MESSAGES/my_app_name.mo # messages/xx/LC_MESSAGES/my_app_name.mo (for our example 'xx') # Simulate a simple translation catalog (rot13 for 'xx' locale) # In a real scenario, this would involve gettext and .po/.mo files. class MockTranslator: def gettext(self, message): if os.environ.get('LANG') == 'xx': return message.encode('rot13').decode('utf-8') return message class MockApplication: def __init__(self, name, localepath): self.name = name self.localepath = localepath def gettext(self): return MockTranslator() # Patch initialize for this example to use our mock app # In a real app, initialize() would handle catalog loading from LOCPATH def _mock_initialize(app_name, package_path=None): print(f"Initializing i18n for app: {app_name}") print(f"Using LOCPATH: {os.environ.get('LOCPATH')}") print(f"Using LANG: {os.environ.get('LANG')}") return MockApplication(app_name, package_path) flufl.i18n.initialize = _mock_initialize # --- End of dummy setup --- # Example usage: app_name = 'my_app_name' # 1. Set up environment variables (typically done outside the script) # For demonstration, we set them here. # IMPORTANT: Use os.path.dirname(__file__) to point to where your 'messages' package is # For this quickstart, we're simulating, so package_path isn't strictly used by our mock. package_path = os.path.join(os.path.dirname(__file__), 'messages') # Placeholder os.environ['LANG'] = 'en' # Default language os.environ['LOCPATH'] = package_path # Path to your translation catalogs # Initialize the application and bind the translation function _ = initialize(app_name, package_path).gettext() print(f"English: {_('Hello, world!')}") print(f"English: {_('How are you?')}") # 2. Switch language context (e.g., for a web server or specific user session) os.environ['LANG'] = 'xx' # A faux language for demonstration # Re-initialize or push a new context (initialize here for simplicity in single-context example) _ = initialize(app_name, package_path).gettext() print(f"Faux (XX): {_('Hello, world!')}") print(f"Faux (XX): {_('How are you?')}") # Clean up environment variables (optional) del os.environ['LANG'] del os.environ['LOCPATH']