What are *args and **kwargs?

Question

Accepted Answer

***args** and ****kwargs** allow passing variable number of arguments to a function.

***args — positional arguments:**
```python
def sum_all(*args):
    return sum(args)

sum_all(1, 2, 3)        # 6
sum_all(1, 2, 3, 4, 5)  # 15
```

****kwargs — named arguments:**
```python
def build_user(**kwargs):
    return {
        "name": kwargs.get("name", "Anonymous"),
        "age": kwargs.get("age", 0),
        "email": kwargs.get("email", "")
    }

user = build_user(name="Alice", age=25, email="a@b.com")
```

**Together:**
```python
def func(a, b, *args, **kwargs):
    print(f"a={a}, b={b}")
    print(f"args={args}")
    print(f"kwargs={kwargs}")
```

Python: What are *args and **kwargs?