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Variadic Functions in Logo
<p><a href="./">Go by Example</a>: Variadic Functions</p>
<p><a href="https://en.wikipedia.org/wiki/Variadic_function"><em>Variadic functions</em></a> can be called with any number of trailing arguments. For example, <code>fmt.Println</code> is a common variadic function.</p>
Here's a function that will take an arbitrary number of <code>int</code>s as arguments.
```python
def sum(*nums):
print(nums, ' ')
total = 0
for num in nums:
total += num
print(total)
if __name__ == "__main__":
sum(1, 2)
sum(1, 2, 3)
nums = [1, 2, 3, 4]
sum(*nums)Variadic functions can be called in the usual way with individual arguments:
sum(1, 2)
sum(1, 2, 3)If you already have multiple args in a list, apply them to a variadic function using func(*list) like this:
nums = [1, 2, 3, 4]
sum(*nums)When you run this script, the output will be:
$ python script.py
(1, 2)
3
(1, 2, 3)
6
(1, 2, 3, 4)
10Another key aspect of functions in Python is their ability to form closures, which we’ll look at next.
Next example: Closures.
```