requirements.txt

# Core dependencies
Django==4.2.10
python-decouple>=3.8,<4.0
Pillow>=10.0,<11.0
Pygments>=2.15,<3.0

# Database
psycopg2-binary>=2.9,<3.0

# Caching and sessions
redis>=5.0,<6.0
django-redis>=5.4,<6.0

# Web server
gunicorn>=21.2,<22.0

# HTTP client (for healthcheck)
requests>=2.31,<3.0

# Production optimizations
whitenoise>=6.5,<7.0  # Static file serving
django-compressor>=4.4,<5.0  # CSS/JS compression

# Security
django-cors-headers>=4.3,<5.0
django-csp>=3.7,<4.0  # Content Security Policy

# Monitoring and debugging (production)
sentry-sdk>=1.39,<2.0
django-extensions>=3.2,<4.0

# Testing
pytest>=7.4,<8.0
pytest-django>=4.7,<5.0
pytest-cov>=4.1,<5.0
playwright>=1.40,<2.0

# Code quality
black>=23.12,<24.0
flake8>=6.1,<7.0
isort>=5.13,<6.0

# Documentation
markdown>=3.5,<4.0
linkify-it-py>=2.0,<3.0

# Optional: Image processing
# Pillow>=10.1,<11.0

# Optional: API framework
# djangorestframework>=3.14,<4.0
# django-filter>=23.5,<24.0