尝试安装emokit时找不到正确的pyhidapi版本

Question

我正在尝试在OS X 10.12.5计算机上安装emokit。当我尝试使用pip或pip3时，我收到以下错误：

My-MacBook-Pro:~ Joonas$ pip3 install emokit
Collecting emokit
  Using cached emokit-0.0.8.tar.gz
Collecting pycrypto==2.6.1 (from emokit)
  Using cached pycrypto-2.6.1.tar.gz
Collecting future (from emokit)
  Using cached future-0.16.0.tar.gz
Collecting pyhidapi (from emokit)
  Could not find a version that satisfies the requirement pyhidapi (from emokit) (from versions: )
No matching distribution found for pyhidapi (from emokit)

看起来应该有倒数第二行之后的版本列表。这是否表明emokit出现了问题，还是我能解决的问题？

谢谢！