I must re-open or edit this main.py, or Outline said "No symbols found in document in main.py" when I start vscode in the morning

VSCode Version: 1.52.1

OS Version: Ubuntu 18.04

Steps to Reproduce:

1. start the vscode with a python script already opened.
2. I must re-open or edit this main.py, or Outline said "No symbols found in document in main.py" when I start vscode in the morning

How should I make vscode automatically show the outline, when I open vscode with a python script already opened at last time.

https://stackoverflow.com/questions/65589641/i-must-re-open-or-edit-this-main-py-or-outline-said-no-symbols-found-in-docume January 06, 2021 at 11:02AM