b.py___

class Employee:
    def __init__(self, name, employee_id, base_salary):
        self.name = name
        self.employee_id = employee_id
        self.base_salary = base_salary
    
    def get_salary(self):
        return self.base_salary
    
    def display_info(self):
        return f"Employee: {self.name} (ID: {self.employee_id})"
    
    def apply_raise(self, percentage):
        self.base_salary += (self.base_salary * percentage / 100)
        return f"New salary after {percentage}% raise: ${self.base_salary:,.2f}"

class Developer(Employee):
    def __init__(self, name, employee_id, base_salary, programming_languages):
        # Call parent class's __init__ method
        super().__init__(name, employee_id, base_salary)
        self.programming_languages = programming_languages
    
    def add_language(self, language):
        self.programming_languages.append(language)
        return f"Added {language} to skill set"
    
    # Override display_info method
    def display_info(self):
        basic_info = super().display_info()
        return f"{basic_info}\nRole: Developer\nSkills: {', '.join(self.programming_languages)}"

class Manager(Employee):
    def __init__(self, name, employee_id, base_salary, team_members=None):
        super().__init__(name, employee_id, base_salary)
        self.team_members = team_members if team_members else []
    
    def add_team_member(self, employee):
        if isinstance(employee, Employee):
            self.team_members.append(employee)
            return f"Added {employee.name} to team"
        return "Invalid team member"
    
    def get_salary(self):
        # Managers get 10% bonus on top of base salary
        return self.base_salary * 1.1
    
    def display_info(self):
        basic_info = super().display_info()
        team_names = [member.name for member in self.team_members]
        return f"{basic_info}\nRole: Manager\nTeam Members: {', '.join(team_names)}"

# Example usage
if __name__ == "__main__":
    # Create a developer
    dev = Developer("Alice Smith", "DEV001", 75000, ["Python", "JavaScript"])
    print(dev.display_info())
    print(dev.add_language("Java"))
    print(dev.apply_raise(10))
    
    # Create another developer
    dev2 = Developer("Bob Johnson", "DEV002", 70000, ["Python", "C++"]) 
    
    # Create a manager
    manager = Manager("Carol Williams", "MGR001", 100000)
    print("\n" + manager.display_info())
    
    # Add team members to manager
    print(manager.add_team_member(dev))
    print(manager.add_team_member(dev2))
    
    # Display updated manager info
    print("\n" + manager.display_info())
    print(f"Manager's salary with bonus: ${manager.get_salary():,.2f}")