!!! info "Why use HED?" HED (Hierarchical Event Descriptors) is an infrastructure and a controlled vocabulary that allows researchers to annotate their experimental data, especially events, so that tools can automatically use this information in analysis.

For more information on using Hierarchical Event Descriptors (HED) visit HED project homepage.

You can install hedtools from PyPI:

pip install hedtools

Or install directly from the GitHub repository:

pip install git+https://github.com/hed-standard/hed-python.git

• See HED resources for user documentation and tutorials
• The HED online tools provide an easy-to-use interface that requires no programming

If you notice a bug in the python hedtools code or encounter other problems using the tools, please open an issue in the hed-python repository on GitHub.