44. *args and **kwargs = Whaat?

As I continue learning Python, I get to be amazed at the ingenuity of humans. I mean, who but not a human would come up with a name such as *args and **kwargs ?

What are these? At first, I thought that they are just a concept that is not that important and will disappear. 

That was just wrong! 

These things called *args and  **kwargs  are quite useful, they give you the positivity to pass a variety of positional arguments to a function. 

What are positional arguments? It means that the values passed through those arguments are passed to parameters by their position.

In this example :

def my_sum(*args):

       result = 0

       for x in args:

       result += x

return result

You can pass any number of arguments, they don’t need to be defined before. We can even call them whatever else name like *numbers. But the unpacking operator(*) needs to be there. The result will be an object that is a tuple, not a list. I should investigate these tuples more, they have a funny name as well :) 

The  **kwargs are keyword arguments. 

This means that they accept name arguments. 

def connect(**kwargs):

         result = “ ”

          for arg in kwargs.values()

          result += arg

 return result

 When we call the function, we can pass determined arguments as in : 

print(connect(a=”Hello”, b=”There”))  >  HelloThere

We can call the kwargs anything else but remember to use the unpacking operator (**). 

Ok, now we can *args  and **kwargs as much as we want :)