Python initialize variable only once and use in separate files

In Python, it's common to need a variable that is initialized only once and then used across multiple files or modules. To achieve this, we can use a combination of techniques such as modules, singletons, and lazy initialization. In this tutorial, we'll walk you through the steps to initialize a variable only once and access it from separate files.
A singleton is a design pattern that ensures only one instance of a class exists. In this case, we'll create a module that serves as a singleton for our shared variable.
Now that we have our shared variable module, let's see how to use it in separate files.
You should see output similar to the following:
By following these steps, you can initialize a variable only once and use it in separate Python files. This approach ensures that the variable is initialized lazily and that its value remains consistent across different modules.
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