# Core dependencies
numpy>=1.21.0
pandas>=1.3.0

# CLI support
click>=8.0.0
argparse>=1.4.0

# Testing
pytest>=7.0.0
pytest-cov>=3.0.0

# Development
black>=22.0.0
flake8>=4.0.0
mypy>=0.950

# Documentation
sphinx>=4.5.0
sphinx-rtd-theme>=1.0.0

# Optional: Web API support
flask>=2.0.0
fastapi>=0.95.0
uvicorn>=0.21.0