intellisense suggests from incorrect module when using namespaces

Issue Type: Bug

Using python 3.8.0

Given directory structure

/src/foo/__init__.py
/src/foo/bar/__init__.py
/src/foo/bar/baz.py
/tests/__init__.py
/tests/foo/__init__.py
/tests/foo/bar/__init__.py
/tests/foo/bar/test_baz.py

where /src/foo/__init__.py, /tests/__init__.py, and /tests/foo/__init__.py are used to designate namespace packages, with the following contents:

__path__ = __import__('pkgutil').extend_path(__path__, __name__)

Thus, 2 namespaces are created:

foo

and

tests.foo

with bar being a non-namespace package in each

When editing /src/foo/bar/baz.py

…and typing foo. in the editor…

Expected Result

intellisense displays suggestions from the foo. module (foo.bar.baz …)

Actual Result

intellisense ends up displaying suggestions from tests.foo module, instead (foo.bar.test_baz …)

Thus, e.g. typing foo. in the editor will cause intellisense suggestions from tests.foo. instead of from foo..

Workaround

Performing Developer: Reload Window will resolve this.

Extension version: 2019.10.44104 VS Code version: Code 1.40.0 (86405ea23e3937316009fc27c9361deee66ffbf5, 2019-11-06T17:09:34.601Z) OS version: Darwin x64 18.7.0 Remote OS version: Linux x64 4.9.184-linuxkit

System Info

Item	Value
CPUs	Intel® Core™ i7-8750H CPU @ 2.20GHz (12 x 2200)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off surface_control: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off webgl: enabled webgl2: enabled
Load (avg)	4, 3, 3
Memory (System)	16.00GB (0.31GB free)
Process Argv
Screen Reader	no
VM	0%

Item	Value
Remote	Dev Container: devbot
OS	Linux x64 4.9.184-linuxkit
CPUs	Intel® Core™ i7-8750H CPU @ 2.20GHz (6 x 2200)
Memory (System)	3.85GB (0.53GB free)
VM	0%

[eedwards-sk]

I have switched to the microsoft language server in the mean time (I was disabling it every time I needed to repro this).

The microsoft language server also has the benefit of “find all references” actually working correctly, whereas it does not work in Jedi.

However, the vscode containers in python also seem to take multiple executions of common commands for them to work. e.g. I often must open my workspace twice, as sometimes the first time it opens, the project’s folder listing never appears, and I have to “rebuild the dev container”.

Almost every time I change a python unittest, I have to click “run test” twice, as the first time it doesn’t run the rest (but seems to attempt to do a discovery run), instead.

I also have to run “find all references” twice for it to actually show any results.

These are among some of the issues that dev containers are riddle with (along with pretty awful UX, in general). Thus I wouldn’t be surprised if dev containers were also contributing to my issue.

If i get a chance to clone, sanitize, and create a reproduction with my current project I will share it, but it’s non-trivial work that I currently cannot spike on.

[brettcannon]

@eedwards-sk I have opened https://github.com/microsoft/vscode/issues/84738 to try to get VS Code to tweak their command to not leave our template out.