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Python extension locks up VSCode during startup

See original GitHub issue

Environment data

VS Code version:

Version: 1.45.1
Commit: 5763d909d5f12fe19f215cbfdd29a91c0fa9208a
Date: 2020-05-14T08:27:22.494Z
Electron: 7.2.4
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Linux x64 5.3.0-59-generic

Extension version (available under the Extensions sidebar): 2020.5.86806
OS and version: Ubuntu 18.04.4
Python version (& distribution if applicable, e.g. Anaconda): OS has Python 2.7.17 and 3.6.9. I’ve also got 3.5.9, 3.7.7 and 3.8.3 installed via the deadsnakes PPA
Type of virtual environment used (N/A | venv | virtualenv | conda | …): OS Python, virtualenv (via mkvirtualenv)
Jedi or Language Server? "python.jediEnabled": true
Value of the python.languageServer setting: Microsoft

Expected behaviour

Initial startup of the Python extension is essentially a background activity.

Actual behaviour

Initial startup of the Python extension locks up VSCode and creates sufficient load that other programs slow down.

This is only noticeable on the first startup of the extension after a reboot or a long period of inactivity. Just restarting VSCode doesn’t reproduce this.

Steps to reproduce:

start VSCode
open any Python file
try to click around within that file while the Python extension is starting up

Issue Analytics

State:
Created 3 years ago
Comments:7 (4 by maintainers)

Top GitHub Comments

1reaction

karthiknadigcommented, Jun 17, 2020

We are refactoring the entire python discovery process. We plan on addressing several issues with respect to performance and discovering python interpreters. One of the things we plan on doing is avoid blocking extension load on discovering interpreters.

0reactions

karthiknadigcommented, Oct 18, 2021

With the latest release this should now behave better. We have a new discovery system that was in experiment for a while and is now live.

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