keyword arguments in python w3schools
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In Python, functions allow you to pass arguments in two main ways: positional arguments and keyword arguments. While positional arguments are passed based on their position, keyword arguments are passed using the parameter names. This tutorial will focus on keyword arguments in Python.
Keyword arguments allow you to pass values to a function by explicitly specifying the parameter names and their corresponding values. This provides flexibility and clarity when calling functions, especially when dealing with functions that have many parameters.
The syntax for using keyword arguments is as follows:
Clarity: Using keyword arguments makes the function call more readable, especially when there are multiple parameters.
Flexibility: You can pass arguments in any order, as long as you specify the parameter names.
Default Values: When defining a function, you can provide default values for parameters. If a value is not provided during the function call, the default value is used.
Let's consider a simple function that calculates the area of a rectangle:
Now, let's call this function using keyword arguments:
In this example, we specified the parameter names length and width when calling the function, making the code more readable.
You can also provide default values for parameters in the function definition. For example:
Now, you can call this function without providing any arguments, and it will use the default values:
Keyword arguments in Python provide a powerful and flexible way to pass values to functions, enhancing code readability and maintainability. They are particularly useful when dealing with functions that have multiple parameters or when you want to provide default values for certain parameters.
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