finlab

Before running any FinLab code, verify these in order: uv is installed (Python package manager): If uv is not installed, tell the user to install it. After installing, ensure uv is on PATH: FinLab is installed via uv (requires >= 1.5.9): Or use uv run for zero-setup execution (recommended for one-off scripts): uv run --with auto-creates a temporary environment with dependencies — no venv management needed. API Token is set (required - finlab will fail without it): If no token, use finlab's built-in login (available in >= 1.5.9): This handles the full OAuth flow (browser login, token retrieval, .env storage) automatically. Respond in the user's language. If user writes in Chinese, respond in Chinese. If in English, respond in English. Use data.get(" : ") to retrieve data: Filter by market/category using data.universe() : See data-reference.md for complete data catalog. Use FinLabDataFrame methods to create boolean conditions: See dataframe-reference.md for all FinLabDataFrame methods.