Update: It has been solved in *Python 2017.1 EAP*
I reported the issue at https://youtrack.jetbrains.com/issue/PY-22786
I use Docker for Windows on Windows 10 with Hyper-V Docker version 1.13.1, build 092cba3
Docker image: phizaz/sklearn (basically installs numpy, scipy, scikit-learn) Using this image, PyCharm will slowly update the skeleton and even the bar is full it won't finish, I even left the computer for a day and it didn't finish.
Here is the captured screenshot:
I think it might relate to this issue as well:
Because not only it won't finish, sometimes I encountered Pycharm not responding, as even so Docker not responding as well. (after closing Pycharm docker became responsive as usual)
For now, I'll use 2017.1 EAP instead.