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When working on a Python project, it's common to have dependencies that are only needed during development, such as testing frameworks, linters, or code formatting tools. pyproject.toml is a configuration file that's becoming increasingly popular for Python projects, especially those using the PEP 517/518 build system. This tutorial will guide you through the process of installing development dependencies using pyproject.toml with the help of pip.
Before we begin, make sure you have the following installed:
If you don't already have a pyproject.toml file in your project directory, create one. This file is used to specify project metadata, dependencies, and build configuration.
In the same pyproject.toml file, under the [tool.poetry.dev-dependencies] section, list the packages you need for development.
In this example, we're adding pytest for testing, flake8 for linting, and black for code formatting. Adjust the versions based on your project requirements.
Now, use pip to install the development dependencies.
This command installs the project in editable mode (-e), ensuring changes to the source code are reflected immediately. The . at the end specifies the current directory as the project root.
If you prefer to keep development dependencies separate, you can use [dev] to install only the dev dependencies.
Congratulations! You've successfully set up and installed development dependencies for your Python project using pyproject.toml and pip. This approach ensures a clean and reproducible development environment for your project. Feel free to customize the dev dependencies based on your specific needs.
Remember to adjust the versions of the dependencies according to your project's compatibility requirements. Happy coding!
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