Code navigation not found in remote debugging

[ZackLuo0602]

It seems like code navigation is out of functionality when ptvsd is used to debug code on a remote machine. Here's my case: I configured launch.json as ready to attach a remote process, and in my current workspace folder was the single script file I wanted to debug. Debugging went nicely as ptvsd itself looks, but how can I navigate to other library files and interface it refers to on the remote machine?
I know it's easy to access code navigation in local workspace, how or whether is it able to tackle this remotely? If there is a way, please offer instructions.

[karthiknadig]

Moving this to Python extension