# Data Loader Plugin Dependencies Data loader plugins sometimes need custom Python packages. These can be provided in the `pkg` folder, relative to where the data loader is invoked. The recommendation is to include a `requirements.txt` file in the folder where the data loader plugin is located. That file lists all the required packages, with one package dependency per line. For example: ```text dateutils requests ``` To download these packages into the `pkg` folder, execute the following command (the `pkg` folder must exist before calling this command): ```bash pip install -r requirements.txt --root pkg ```