IntelliSense/Code Preview not working correctly in 2019.3.6558

Environment data

• VS Code version: 1.33.1
• Extension version (available under the Extensions sidebar): XXX
• OS and version: Windows 10 1803
• Python version : 3.7.2
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): None
• Relevant/affected Python packages and their versions: every package

Expected behaviour

When importing a class and creating an instance/object of this class we got a small preview how to use this object. (This is from Python extension for Visual Studio Code Version 2019.3.6352)

Actual behaviour

With Python extension for Visual Studio Code Version 2019.3.6558 (most recent build) it does nothing.

Steps to reproduce:

1. Type following code and look if youget the preview:

import threading

threading.Thread()

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

None

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help; turn on source maps to make any tracebacks be useful by running Enable source map support for extension debugging)

None

[phizaz]

@karrtikr I use the Language Server (python.jediEnabled = False).

[karrtikr]

Issue moved to Microsoft/python-language-server #983 via ZenHub