def func():
    x = 10  # Local scope

def process_data():
    print("Processing data...")

def main():
    print("Initializing system...")
    process_data()

if __name__ == "__main__":
    main()

Initializing system...
Processing data...

def initialize():
    print("System initialized")

def run():
    print("Application running")

def shutdown():
    print("System shutdown")

def main():
    initialize()
    run()
    shutdown()

if __name__ == "__main__":
    main()

System initialized
Application running
System shutdown

def main():
    try:
        print("Executing task...")
    except Exception as e:
        print("Error occurred:", e)

if __name__ == "__main__":
    main()

Executing task...

def main(name):
    print(f"Welcome, {name}")

if __name__ == "__main__":
    main("Alice")

Welcome, Alice

(x**2 for x in range(10))

<generator object <genexpr> at 0x000001D08AA0C520>

class Calculator:
    def multiply(self, a, b=1):
        return a * b

calc = Calculator()
print(calc.multiply(5))     # 5
print(calc.multiply(5, 3))  # 15

5
15

class Animal:
    def sound(self):
        print("Animal makes sound")

class Dog(Animal):
    def sound(self):
        print("Dog barks")

d = Dog()
d.sound()  # Dog barks

Dog barks

class Animal:
    def speak(self):
        print("Animal sound")

class Dog(Animal):
    def speak(self):
        print("Dog barks")

pet = Dog()
pet.speak()

Dog barks

class A:
    def show(self):
        print("A")

class B(A):
    def show(self):
        print("B")

class C(B):
    pass

c = C()
c.show()
print(C.mro())

B
[<class '__main__.C'>, <class '__main__.B'>, <class '__main__.A'>, <class 'object'>]