search over paths mentioned in .pth

[DylanModesitt]

I often use a .pth file in my venvs in order to add internal modules or packages. Usually, this is in order to have an efficient way to work on pip-package A's interactions with package B.

Would it be possible to search for source in any paths mentioned in a venv's *.pth file(s) giving behavior analogous to manually adding those same paths to "python.analysis.extraPaths"?

[jakebailey]

pth files should work normally (as we ask python for its sys.path), but don't; I'm going to call this a dupe of #78 as editable installs are also based on pth files, and what whole thing will be investigated together.