Python OOP Projects Collection

This repository contains three different Python projects demonstrating various Object-Oriented Programming concepts.

Project Structure

.
├── multiple_inheritance/
│   └── multiple_inheritance.py     # Demonstrates multiple inheritance concept
├── website_opener/
│   └── website_opener.py          # Random website opener using standard library
└── employee_management/           # Main project implementing Samy's story
    ├── main.py                    # Entry point of the program
    └── models/
        ├── __init__.py           # Package initializer
        ├── person.py             # Person base class
        ├── car.py               # Car class implementation
        ├── employee.py          # Employee class (inherits from Person)
        └── office.py           # Office class implementation

1. Multiple Inheritance Example

Located in multiple_inheritance/ folder, this project demonstrates Python's multiple inheritance using a simple animal hierarchy example. It shows how a class can inherit from multiple parent classes and the method resolution order (MRO).

Output

Pet Buddy created
Dog barks
MRO of Pet: (<class '__main__.Pet'>, <class '__main__.Dog'>, <class '__main__.Cat'>, <class '__main__.Animal'>, <class 'object'>)

2. Random Website Opener

Located in website_opener/ folder, this project demonstrates the use of Python's standard library modules (webbrowser and random) to randomly select and open a website from a predefined list.

Output

Opening https://www.python.org...
# Browser opens with the randomly selected website

3. Employee Management System (Samy's Story)

Located in employee_management/ folder, this project implements a comprehensive story about an employee named Samy.

The Story

Samy is an employee at ITI Smart Village who commutes daily (except weekends) using his Fiat 128 car. Here are the key points of the story:

• Samy lives 20 km away from ITI
• He must arrive before 9:00 AM to avoid being late
• His car's fuel consumption is tracked (10% decrease every 10km)
• His performance affects his salary (rewards/deductions based on attendance)

Implementation Details

Person Class (person.py)

• Base class for human entities
• Manages basic human needs:
  • Sleep (affects mood: 7h→happy, <7h→tired, >7h→lazy)
  • Eat (affects health: 3 meals→100%, 2 meals→75%, 1 meal→50%)
  • Buy (each item costs 10 L.E)

Car Class (car.py)

• Represents vehicles with:
  • Fuel rate (0-100%)
  • Velocity (0-200 km/h)
  • Run/stop functionality
  • Fuel consumption tracking

Employee Class (employee.py)

• Inherits from Person
• Additional features:
  • Salary management
  • Car ownership
  • Email communication
  • Work schedule tracking

Office Class (office.py)

• Manages employee records
• Handles:
  • Hiring/firing
  • Attendance tracking
  • Salary adjustments
  • Employee count across all offices

Example Run (from main.py)

# Output when running main.py:
Arrived at destination
Samy is on time

This output shows that:

1. Samy successfully arrived at his destination (ITI - Smart Village branch)
2. He arrived before 9:00 AM (considering he left at 8:00 AM and took 20 minutes to travel 20km at 60km/h)

Key Calculations

• Distance: 20 km
• Speed: 60 km/h
• Travel time: 20 km ÷ 60 km/h = 1/3 hour (20 minutes)
• Departure: 8:00 AM
• Arrival: 8:20 AM (before 9:00 AM → on time)
• Fuel consumption: 20% (10% per 10km)

Requirements

• Python 3.6 or higher
• Standard library modules only (no additional dependencies needed)

How to Run

1. Clone the repository
2. Navigate to the desired project folder
3. Run the main script:

# For employee management system:
python employee_management/main.py

# For multiple inheritance example:
python multiple_inheritance/multiple_inheritance.py

# For website opener:
python website_opener/website_opener.py