Advertisements. Using the splat operator can make your code significantly smaller. def add (*a) : return sum(a) >>> add( 1 , 2 , 3 ) 6 the ability to bind the items in an Iterable to local names: a, b = 1, 2 or pass them as positional args to a function: foo(*args), and similarly, to pass Dictionary items as keyword args: foo(**kwargs). I have a large (~10 elements) list of integers that I wish to interpolate into a string. Type the following code into the notebook and click Run Cell. Expanding, Unpacking, or ... Splatting? We want to make call to this function and we have a list of size 4 with us that has all arguments for the function. The simplest example would be something like this: Another useful thing is that the splat operator can make an array into several arguments: Single *Splat. An array value is also defined. Whatever you call it, a few wonderfully useful features in Python are. Operator Description ** Exponentiation (raise to the power) ~ + - Complement, unary plus and minus (method names for the last two are +@ and -@) * / % // Learning how to use Python’s various data types is part of every programmer’s journey to mastering the language. Background Consider a situation where we have a function that receives four arguments. Here's an example: >>> def sum(a,b,c):... print a+b+c... >>> sum(1,2,3) 6 … Previous Page. ... Python provides more than one way to perform any task. A simple … The following table lists all operators from highest precedence to lowest. In this article, we discussed Python lists, showing you how to create, build and clear them. In the above example, the defined function takes x, y, and z as arguments and returns the sum of these values. The splat operator has almost endless uses. Splat combines zero or more positional arguments into a tuple, while splatty-splat combines zero or more keyword arguments into a dictionary. It's not an operator as such, so it doesn't really have a name, but it is defined as a "syntactic rule".So it should be called: "the keyword argument unpacking syntax" If you have a list of arguments, *args, it's called "argument unpacking", in the same manner **kwargs is called "keyword argument unpacking". This seems like an ideal use case for the splat operator, so I'd like to be able to do something like this: Apply the "splat" operator (*) to the parameter list, and it will work. We use two operators * (for tuples) and ** (for dictionaries). The splat operator unpacks multiple values, and there are two types of function parameters namely *args short for arguments, and **kwargs short for keyword arguments. But the main idea is that whenever you don’t want to specify the number of arguments you have, you would use a splat operator. In this case, the code uses the join() method to join the newline character with each member of Colors. 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