Intellisense does work with GTK+ 3 (GObject Introspection)

Start with the GTK/GObject Introspection reproduction in the issue, including import gi, gi.require_version, and from gi.repository import Gtk. Review the linked Jedi and vscode-python discussions to understand the missing autocomplete support. Done means Pylance offers member functions and variables after Gtk. as Jedi does.

Environment data

• Language Server version: v2020.11.2
• OS and version: Ubuntu 20.04 (WSL2) on Win 10, 19041.630
• Python version (& distribution if applicable, e.g. Anaconda): Python 3.8.5

Expected behaviour

Autocomplete should show member functions and variables for GTK+ 3 library (import gi)

Actual behaviour

Autocomplete does not work for import gi

Logs

Nothing of relevance appeared to be in the logs for the language server. Things like: "setFileOpened, getDiagnosticsForRange, parsing file, binding, file, getSemanticTokens", but nothing odd.

Code Snippet / Additional information

• Install GTK graphical user interface library -- gir bindings (gir1.2-gtk-3.0)
• Install Python 3 bindings for gobject-introspection libraries (python3-gi)
• Try to autocomplete Gtk.

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
win = Gtk.

Key issue: This works as expected if I change the language server to jedi, but does not work with pylance. Autocomplete also works fine in the Ubuntu command line interpreter (python3).

Related discussion that I found (but had trouble interpreting) on other github projects:

• jedi GTK+ 3 (GObject introspection) microsoft/pylance-release#531
• vscode-python Autocomplete doesn't work for Gtk+ 3 microsoft/pylance-release#582