No highlighting when selecting a word.

[HongtaoYang]

Issue Type: Bug

Missing variable highlights when selecting a word. This happens with instance variables from my testing. See the following three screen shots. Only thevar in the __init__ was highlighted when the cursor was on that variable. More strangely, it doesn't even highlight the variable in the same method.

Extension version: 2021.6.3
VS Code version: Code 1.57.1 (507ce72a4466fbb27b715c3722558bb15afa9f48, 2021-06-17T13:28:32.912Z)
OS version: Darwin x64 19.6.0
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz (8 x 2300)
GPU Status	2d_canvas: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: disabled_off_ok video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 2, 2
Memory (System)	32.00GB (0.22GB free)
Process Argv	. --crash-reporter-id 94428f45-d8ae-489d-ad47-c989c48031bb
Screen Reader	no
VM	0%

[jakebailey]

I can reproduce this, thanks.

[lapraswastaken]

Yep, I've got the same issue.

[jakebailey]

This appears to be a regression introduced in 2021.6.2 as a part of a refactoring done to enable dictionary key completion; they both use the same code to track variable read/writes.

[picrots]

+1 from me to hopefully move this to higher priority for fix. TQ

[jakebailey]

@picrots I have a fix prepared for review which should make it for next week's release, so no worries there.

[bschnurr]

This issue has been fixed in version 2021.7.3, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/main/CHANGELOG.md#202173-14-july-2021