Unicode literals are causing error messages

PyNSOT has lots of error regarding unicode literals which makes it really annoying to use.

nsot devices list -H device1
/usr/local/lib/python2.7/dist-packages/pynsot/app.py:848: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:35: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:79: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:176: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:200: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:234: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context
/usr/local/lib/python2.7/dist-packages/pynsot/commands/cmd_devices.py:315: Warning: Click detected the use of the unicode_literals __future__ import. This is heavily discouraged because it can introduce subtle bugs in your code. You should instead use explicit u"" literals for your unicode strings. For more information see https://click.palletsprojects.com/python3/
@click.pass_context