Python Tutorial #8: Modules, Packages, and Virtual Environments
In the previous tutorial, we mastered strings and regular expressions. Now let’s learn how to organize your code into modules and packages, and how to manage dependencies with virtual environments. This is where Python goes from writing scripts to building real projects. By the end of this tutorial, you will know how to import code, structure a project, install packages, and use modern tools like pyproject.toml and uv. What Is a Module? A module is simply a Python file. When you create a file called math_utils.py, you create a module called math_utils. ...