# QR Code Management System - Python Dependencies # Production-ready Flask application with MySQL support # Core Flask Framework Flask Flask-SQLAlchemy # Database Support - MySQL PyMySQL # Pure Python MySQL client mysql-connector-python # Official MySQL connector (alternative) SQLAlchemy # Security and Authentication Werkzeug # Security utilities and password hashing # QR Code Generation qrcode # QR code generation library Pillow # Image processing for QR codes # User Agent Detection user-agents # Device and browser detection from user agent strings # URL and Regex Processing regex # Enhanced regex support for URL generation # Environment and Configuration python-dotenv # Environment variable management # Date and Time Processing python-dateutil # Extended date/time processing # Development and Testing (optional) pytest # Testing framework pytest-flask # Flask testing utilities Flask-Testing # Additional Flask testing tools # Production Server (optional) gunicorn # WSGI HTTP Server for production gevent # Async worker support # Utilities click # Command line interface creation itsdangerous # Secure data serialization Jinja2 # Template engine MarkupSafe # Safe string handling # Data Export and Processing openpyxl # Excel file generation for attendance reports pandas # Data manipulation for reports (optional) # HTTP Requests (for potential integrations) requests # HTTP library for external API calls # Caching (optional for performance) Flask-Caching # Caching support for Flask # Logging and Monitoring (optional) python-json-logger # Structured logging support # Cryptography dependencies (required for some MySQL features) cryptography # Required for MySQL SSL connections # Employee Synchronization Dependencies schedule # For automated scheduling