Poetry is a package and dependency management tool for Python that allows you to easily manage your project's dependencies and build system. In this tutorial, we will explore how to use Poetry to manage dependencies and build a Python project that includes poetry.


Installing Poetry

To use Poetry, you first need to install it on your machine. Poetry can be installed using pip, the Python package installer. Open your terminal and run the following command: 

pip install poetry

After installing poetry, you can check if it was installed correctly by running: 

poetry --version

If everything went well, you should see the version number of Poetry printed to the console.


Creating a new project with Poetry

To create a new project with Poetry, run the following command in your terminal: 

poetry new myproject

This will create a new directory called myproject that contains a basic Python project structure. Inside this directory, you will find a file called pyproject.toml which is where you will define your project's dependencies.


Adding dependencies to your project

To add dependencies to your project, you need to edit the pyproject.toml file. This file uses TOML syntax to define your project's dependencies. Here is an example of how to add the requests library to your project: 

[tool.poetry.dependencies]
requests = "^2.25.1"

In this example, we added the requests library and specified that we want version 2.25.1 or higher. The ^ character means that we want to allow minor version updates, but not major version updates.

Once you have defined your dependencies, you can install them by running: 

poetry install

This will install all the dependencies specified in the pyproject.toml file and create a virtual environment for your project.


Building your project with Poetry

Poetry makes it easy to build your project and generate a distributable package. To build your project, run the following command: 

poetry build

This will create a distributable package in the dist directory. The package will include all the dependencies specified in the pyproject.toml file.


Conclusion

Poetry is a powerful tool for managing dependencies and building Python projects. In this tutorial, we covered the basics of using Poetry to create a new project, add dependencies, and build a distributable package. With Poetry, you can streamline your Python development process and focus on writing code that matters.