Lære Positional Arguments | Positional and Optional Arguments

Python Functions Tutorial

In Python, positional arguments are function arguments passed to a function based on their position or order. When defining a function, you can specify the parameters it expects. When calling the function, you provide the corresponding arguments in the same order as the parameters.

def function_name(argument1, argument2):
    ...

In all the functions of the previous chapters, we used positional arguments by explicitly indicating the arguments in the () parentheses, and then calling the function with the arguments in the appropriate order.

We can also specify arguments using a dictionary with the argument name as a keyword and the argument value as a value:

def function_name(argument_name=default_value):
    ...

Using this type of specification allows us to specify arguments in any order.


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# Function with two positional arguments
def greet(name, age):
    print(f'Hello, {name}! You are {age} years old.')

# Calling the `greet()` function using dictionary
greet(age=25, name='Alex')

# Calling the `greet()` function using ordered values
greet('Alex', 25)

This method of setting arguments is preferable because it enhances the readability and interpretability of the code.

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def function_name(argument1, argument2):
    ...