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In Python projects, managing dependencies is a crucial aspect of development. The setup.cfg file is commonly used to store project configuration, including package metadata and dependencies. In this tutorial, we'll explore how to leverage the setup.cfg file to specify and install project dependencies using the pip package manager.
Before proceeding with this tutorial, ensure that you have the following:
Open your project's setup.cfg file. If the file doesn't exist, create one in the root of your project. This file typically contains configuration information for your Python package, including dependencies.
Here's an example setup.cfg file:
In this example, the install_requires section lists the project's dependencies (requests and numpy).
Now, we'll use the pip command to install the project dependencies specified in the setup.cfg file.
Open a terminal or command prompt and navigate to the root directory of your project. Run the following command:
This command tells pip to install the current directory (.), which includes the project files. During the installation, pip will read the setup.cfg file and install the specified dependencies.
If you have additional development dependencies, you can use the -e option to install them:
In this example, the [dev] extra specifier indicates that development dependencies should be installed.
After the installation process completes, you can verify that the dependencies are installed by running:
This command displays a list of installed packages, including the ones specified in the install_requires section of the setup.cfg file.
In this tutorial, you learned how to specify and install project dependencies using the setup.cfg file and the pip package manager. By centralizing dependency information in the setup.cfg file, you make it easier for others to replicate your development environment and maintain a consistent set of dependencies for your project.
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