VSCode Python version defaults to 2.7 in the integrated terminal

Question

I have VScode installed on iMac with Catalina. On the vscode the interpreter defaults to python 2.7. It remains same even after I change python interpreter and python path. I have referred to following questions with out any success.

Question 01

Question 02

Answer 1

Got it. Did the following things.

1. Changed the PATH to point to right version.
2. Changed the python interpreter in the vscode.

I did the same last night and it didn't work even after restarting vscode. Worked ok after restarting the computer.