*args and **kwargs in Python 

🔍 What are *args and **kwargs in Python?

In Python, *args and **kwargs allow you to pass a variable number of arguments to a function.

• 👉 *args → accepts multiple positional arguments
• 👉 **kwargs → accepts multiple keyword arguments

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✨ Why Use *args and **kwargs?

• ✅ Makes functions flexible
• ✅ Handles unknown number of inputs
• ✅ Useful in real-world applications
• ✅ Reduces code repetition

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🧠 Understanding *args (Non-keyword Arguments)

*args allows a function to accept any number of positional arguments.

📌 Example:

def add_numbers(*args):
    total = 0
    for num in args:
        total += num
    return total

print(add_numbers(1, 2, 3, 4))

👉 Output:

10

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🔍 How *args Works

• *args collects arguments into a tuple
• You can loop through it like a list

def show_args(*args):
    print(args)

show_args(10, 20, 30)

👉 Output:

(10, 20, 30)

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🧠 Understanding **kwargs (Keyword Arguments)

**kwargs allows a function to accept any number of keyword arguments.

📌 Example:

def display_info(**kwargs):
    for key, value in kwargs.items():
        print(key, ":", value)

display_info(name="Prathima", age=22)

👉 Output:

name : Prathima
age : 22

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🔍 How **kwargs Works

• **kwargs collects arguments into a dictionary
• Keys = parameter names, Values = parameter values

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🔄 Using *args and **kwargs Together

def demo(*args, **kwargs):
    print("Args:", args)
    print("Kwargs:", kwargs)

demo(1, 2, 3, name="Python", level="Beginner")

👉 Output:

Args: (1, 2, 3)
Kwargs: {'name': 'Python', 'level': 'Beginner'}

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⚠️ Order of Parameters

When using all types together, follow this order:

def function_name(normal, *args, **kwargs):
    pass

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🚀 Real-World Example

def student_details(*args, **kwargs):
    print("Subjects:", args)
    print("Details:", kwargs)

student_details("Math", "Science", name="Ravi", grade="A")

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📦 Advantages

• ✔ Flexible function definitions
• ✔ Clean and readable code
• ✔ Useful in APIs and frameworks
• ✔ Supports dynamic arguments

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📝 Conclusion

Understanding *args and **kwargs in Python is essential for writing flexible and scalable functions. These concepts are widely used in advanced Python programming, including frameworks and libraries.

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