title: Is Dtls available in python3, and how to install it?
body: <p>From the description of <a href="https://pypi.python.org/pypi/Dtls/" rel="nofollow noreferrer">Dtls library</a>, it seems it's not available in python3. And when I want to install with <code>pip install Dtls</code> there's always an </p>
  
  <blockquote>
    <p>Command "python setup.py egg_info" failed with error code 1 in
    C:\Users\sun\AppData\Local\Temp\pip-build-c_46y9mt\Dtls\</p>
  </blockquote>
  
  <p>Solution <a href="https://stackoverflow.com/questions/35991403/python-pip-install-gives-command-python-setup-py-egg-info-failed-with-error-c">here</a> doesn't help. I am using Python 3.6 on Win7. 
  Do I have another option for DTLS?</p>