Today I am going to explain args and kwargs in python
So far I have learned that:
*args = list of arguments -as positional arguments **kwargs = dictionary - whose keys become separate keyword arguments and the values become values of these arguments.The names *args and **kwargs are only by convention but there's no need not to use them. You would use *args when you're not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function. For example: Similarly, **kwargs allows you to handle named arguments that you have not defined in advance:
You can use these along with named arguments too. The explicit arguments get values first and then everything else is passed to *args and *kwargs. The named arguments come first in the list. For example:You can also use both in the same function definition but *args must occur before **kwargs. You can also use the * and ** syntax when calling a function. For example:
As you can see in this case it takes the list (or tuple) of items and matches them to the arguments in the function. Of course, you could have a * both in the function definition and in the function call.