Python Global Variable Import

Publicado em: 25 Novembro 2023
no canal de: CodeFlare

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In Python, global variables are variables that are defined outside of any function or class and can be accessed and modified from anywhere in the code. Importing global variables from one module to another is a common practice when you want to use the same variables in multiple files or modules. This tutorial will guide you through the process of importing global variables in Python with code examples.
Let's start by creating a module that contains global variables. Create a file named global_variables_module.py with the following content:
In this module, we have two global variables (global_variable1 and global_variable2) and a function (print_global_variables) that prints the values of these variables.
Now, let's create another module that imports and uses the global variables defined in the global_variables_module. Create a file named main_module.py with the following content:
In this module, we use the from module_name import variable_name syntax to import specific global variables (global_variable1 and global_variable2) and the print_global_variables function from the global_variables_module. Now, you can use these variables and functions as if they were defined in the main_module.
To run the program, execute the main_module.py file. Open a terminal and run the following command:
You should see the output:
This demonstrates how you can import global variables from one module to another in Python.
In this tutorial, you learned how to create a module with global variables and import them into another module. This practice can help you organize your code into modular components and reuse global variables across different parts of your project. Keep in mind that while using global variables can be convenient, it's essential to use them judiciously to maintain code readability and avoid potential issues related to variable scope.
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