How do you import a function from another file in Python?

In Python, importing a function from another file is typically done using the 'import' statement, which allows you to access functions, classes, and variables defined in another Python file (module). When you use 'import filename', you can then use the functions defined within that file by referencing them with the filename as a prefix.

For instance, if you have a file named 'utilities.py' containing a function called 'calculate', you would import it using 'import utilities' and then call the function as 'utilities.calculate(arguments)'. This process promotes code reusability and helps keep your code organized by separating functionality into different modules.

The other options, such as 'include', 'require', and 'load', are not valid Python syntax for importing modules. They are terms used in other programming languages or contexts but do not apply to Python. By using 'import', you correctly follow Python's conventions and leverage its modular programming capabilities.