python positional only parameters

Published: 24 December 2023
on channel: CodeLink

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Sure, I'd be happy to help with that! In Python, positional-only parameters are function arguments that can only be passed by position and cannot be specified by name. They are denoted in the function definition by placing a forward slash (/) before them. This feature was introduced in Python 3.8 to provide more control over the way functions are called.
Here's an informative tutorial with code examples to explain positional-only parameters:
Positional-only parameters allow defining function parameters that can only be specified by their position in the function call. This means these parameters cannot be accessed by their names when calling the function.
To define positional-only parameters in Python, use the forward slash (/) in the function signature before specifying them.
Let's create a function that utilizes positional-only parameters to calculate the area of a rectangle:
Now, let's demonstrate how to use the calculate_rectangle_area function with positional-only parameters:
Positional-only parameters were introduced in Python 3.8. If you need backward compatibility with older Python versions, avoid using this feature.
Positional-only parameters in Python offer a way to enforce the ordering of function arguments and provide a clearer interface for functions, ensuring parameters are passed by position rather than by name.
Remember, when using positional-only parameters, provide arguments strictly by their position in the function call, without specifying them by name.
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