Modules

Introduction to Modules

Modules are a way to organize code in a way that is easy to reuse, test, and debug. Modules are also called packages, libraries, or frameworks. Modules are used to group related code together. For example, a module can be used to group code that is related to a specific task, such as sending an email. Modules are also used to group code that is related to a specific feature, such as a user interface.

Creating a Module

A module is created by creating a file with the .rn extension. The file name is the name of the module.

const MESSAGE = "Hello, World!"

fun print_msg() {
    print(MESSAGE)
}

Importing a Module

A module is imported by using the import keyword. It is followed by the name of the module.

import hello

hello.print_msg()

You can use the from keyword to import specific names from the module, as well as renaming them:

from hello import MESSAGE, print_msg as pm

pm()
print(MESSAGE)