% xz -d < pyderasn-1.0.tar.xz | tar xf -
% cd pyderasn-1.0
% python setup.py install
+ # or copy pyderasn.py (+six.py) to your PYTHONPATH
PyDERASN depends on `six <https://pypi.python.org/pypi/six>`__ package
for keeping compatibility with Py27/Py35. It is included in the tarball.