Fatal Python error: _PyInterpreterState_Get(): no current thread state Python runtime state: unknown

python 3.6.0+PyQt5运行出现如下错误：

Fatal Python error: _PyInterpreterState_Get(): no current thread state
Python runtime state: unknown

解决方案：
升级python 3.6.0到3.6.2即可。

conda install python=3.6.2