How can I denote unused function arguments?

Question

When "deconstructing" a tuple, I can use `_` to denote tuple elements I'm not interested in, e.g. ``` >>> a,_,_ = (1,2,3) >>> a 1 ``` Using Python 2.x, how can I express the same with function arguments? I tried to use underscores: ``` >>> def f(a,_,_): return a ... File "", line 1 SyntaxError: duplicate argument '_' in function definition ``` I also tried to just omit the argument altogether: ``` >>> def f(a,,): return a File "", line 1 def f(a,,): return a ^ SyntaxError: invalid syntax ``` Is there another way to achieve the same?

Accepted Answer

Here's what I do with unused arguments:

```
def f(a, *unused):
    return a
```

How can I denote unused function arguments?

Solution

Problem