ফাংশন

def greet(name):
    return f"Hello, {name}!"

print(greet("Priya"))  # "Hello, Priya!"

def greet(name="Guest"):
    return f"Hello, {name}!"

print(greet())         # "Hello, Guest!"
print(greet("Amit"))   # "Hello, Amit!"

def add(a: int, b: int) -> int:
    return a + b

print(add(2, 3))       # 5
print(add("2", "3"))  # "23" — no error! type hints don't stop this at runtime

def min_max(numbers):
    return min(numbers), max(numbers)

low, high = min_max([4, 9, 1, 7])
print(low, high)  # 1 9

def total(*numbers):
    return sum(numbers)

print(total(1, 2, 3))       # 6
print(total(1, 2, 3, 4, 5)) # 15 — works with any number of arguments

def describe(**details):
    for key, value in details.items():
        print(f"{key}: {value}")

describe(name="Priya", course="Web Development")