How Does Editable Mode in Pip Install (-e) Facilitate Development?

Understanding the Editable Mode Option in Pip Install (-e)

When dealing with package installation, pip provides an option for editable mode with the -e or --editable flag. This article explores the purpose and usefulness of this option.

What is Editable Mode?

As described in pip's documentation, the editable mode option allows for installing a project in a manner that enables direct access to the original source code from the installation path. This is beneficial for development purposes.

When is Editable Mode Useful?

Editable mode is particularly useful in local development scenarios, where you want to make changes to the source code of a package and have them immediately reflect in your environment. Instead of building and installing the package each time, the editable mode option links the installed package to the original source directory.

How to Use Editable Mode?

To install a package in editable mode, append the -e option to the pip install command. The following command installs the package in editable mode from the current directory:

Alternatively, you can specify the full path to the package's setup.py:

Additional Information

The editable mode option is often found in requirements.txt files with the entry -e ... This line tells pip to install the package in editable mode from the parent directory.

Note that when using editable mode, any changes made to the original package will automatically propagate to the installed environment. This can be beneficial for swift iteration and debugging during development.

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