Скачать или смотреть pip install as editable

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pip install -e is a powerful command that allows you to install a Python package in "editable" mode. This means that instead of copying the package files to the site-packages directory, a link to the package's source directory is created. This is particularly useful during development when you want to make changes to a package and see the effects without reinstalling it.
In this tutorial, we'll explore how to use pip install -e with code examples to help you get started.
Before you begin, ensure that you have Python and pip installed on your system. You can check their versions by running the following commands:
First, let's create a simple Python package. Create a directory for your package and add a setup.py file with the following content:
Now, create a module inside the package directory:
Navigate to the directory containing your setup.py file and run the following command to install the package in editable mode:
The dot (.) at the end indicates the current directory. This command creates a link to the source files rather than copying them.
Now that your package is installed in editable mode, you can use it in your Python scripts or interpreter.
Create a Python script (main.py) with the following content:
Run the script:
You should see the output: "Hello, John!"
Since the package is installed in editable mode, any changes you make to the source files are immediately reflected without the need to reinstall.
Update the greet function in my_module.py:
Run the script (python main.py) again, and you'll see the updated output.
In this tutorial, you learned how to use pip install -e for editable installations, enabling you to develop and make changes to a Python package without the need for constant reinstallation. This is a valuable tool for efficient development and testing workflows.
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