pycdf)¶pycdf is a module for reading CDF files into python. It is forked directly without change from the spacepy project. However, this is a minimal-dependency version which should be much easier to install compared to the full spacepy distribution.
To use pycdf after installing HelioPy do
from pycdf import pycdf
All the documentation for pycdf can be found at https://pythonhosted.org/SpacePy/pycdf.html
spacepy (and therefore the pycdf code) is licensed under the Python Software Foundation license.