Error installing goslate API for python on Windows

I'm getting this result when I try to install the goslate API, which is a more optimized Google Api to handle translations and more.

C:\Users\chris\Documents\PyCharm Projects\Integrador\goslate-1.5.1>py setup.py install
Traceback (most recent call last):
  File "setup.py", line 8, in <module>
      import goslate as module
  File "C:\Users\chris\Documents\PyCharm Projects\Integrador\goslate-1.5.1\goslate.py", line 33, in <module>
      import concurrent.futures
  File "C:\Users\chris\AppData\Local\Programs\Python\Python35-32\lib\site-packages\futures-3.0.3-py3.5.egg\concurrent\futures\__init__.py", line 8, in <module>
      from concurrent.futures._base import (FIRST_COMPLETED,
  File "C:\Users\chris\AppData\Local\Programs\Python\Python35-32\lib\site-packages\futures-3.0.3-py3.5.egg\concurrent\futures\_base.py", line 355
      raise type(self._exception), self._exception, self._traceback
                                 ^
SyntaxError: invalid syntax

It looks like you're giving a problem in module futures , and I've even downloaded this latest futures lib and installed it quietly, but it did not do any good.

Question

Does anyone know what I can do to solve this problem?

P.S. I'm using python version 3.5.1