Comprehensive Guide: Python Data Structures in Hospital Management 🏥🐍

Python Data Structures for Hospital Management Systems

This guide explores Python data structures through hospital management analogies, making complex concepts intuitive and practical. All code uses **Python 3.13** with zero external dependencies.

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### Key Workflows
1. **Patient Admission**: `admit_patient("John Doe", "Fracture", priority=True)`  
2. **ER Processing**: `next_patient = er_queue.popleft()`  
3. **Medication Dispensing**: `med = medication_stack.pop()`  
4. **Doctor Login**: `verify_password(stored_hash, salt, attempt)`  
5. **Equipment Sterilization**: `sterile_tools -= contaminated_tools`

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## 🏃 Running the System

1. Clone the repository:
```bash
git clone https://github.com/chankjen/Python_Data_Structures.git
cd hospital-ds

2. Run the demo simulation:

python hospital_system.py

3. Sample test credentials:

Username: dr_grey
Password: SeattleGrace1!  # Pre-registered in demo

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🔒 Security Best Practices

1. Password Storage

   • Always use PBKDF2, bcrypt or scrypt
   • Never store plaintext passwords
   • Minimum 100,000 iterations for PBKDF2

2. Data Protection

   # Sensitive data handling
   from cryptography.fernet import Fernet
   
   key = Fernet.generate_key()
   cipher = Fernet(key)
   encrypted_data = cipher.encrypt(b"Sensitive patient info")

3. Access Control

   • Implement role-based access control (RBAC)
   • Use decorators for permission checks:

   def requires_access(permission):
       def decorator(func):
           def wrapper(*args, **kwargs):
               if permission not in current_user.access:
                   raise PermissionError("Access denied")
               return func(*args, **kwargs)
           return wrapper
       return decorator
   
   @requires_access("patient_records")
   def view_medical_history(patient_id):
       # ... function logic

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Data Structure Selection Guide

Scenario	Recommended Structure	Hospital Use Case
First-In-First-Out	deque	Patient triage
Last-In-First-Out	list as stack	Medication dispensing
Key-Value Lookups	dict	Patient records
Unique Items	set	Sterile equipment
Immutable Data	tuple	Hospital coordinates
Ordered Collection	list	Ward bed assignments

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"Good data structures are like well-organized hospital wards - they save lives (and runtime)!" 🐍💉