PyYAML is a Python library for parsing and producing YAML documents. It is a full-featured library that allows you to read, write, and manipulate YAML documents.

To use PyYAML, you will need to first install it. You can do this by running the following command in your terminal:

pip install PyYAML

Once you have installed PyYAML, you can start using it. Here is an example of how to read a YAML file using PyYAML:

import yaml

with open(‘example.yml’) as f:
data = yaml.safe_load(f)

print(data)

This will print out the contents of the YAML file as a Python dictionary. You can then use the data in your program however you need.

For more information on how to use PyYAML, please refer to the official documentation.