[Python] VSCode cannot see module 'gymnasium'

I am trying to use the module gymnasium (https://gymnasium.farama.org/introduction/basic_usage/) in a python3 script using VSCode IDE. I've only just installed gymnasium for the first time.

I was under the impression that I had everything installed but encountered this error in VSC:

Traceback (most recent call last): File ".py", line 1, in import gymnasium as gym ModuleNotFoundError: No module named 'gymnasium'```
​

For simplicity sake, I removed the entire code apart from the import statement, same problem.

I tried these (in the VSCode terminal):

pip show gymnasium


and got:

Name: gymnasium
Version: 1.2.0
Summary: A standard API for reinforcement learning and a diverse set of reference
environments (formerly Gym).
Home-page: https://farama.org
Author:
Author-email: Farama Foundation <contact@farama.org>
License: MIT License
Location: /home/<removed>/anaconda3/lib/python3.12/site-packages
Requires: cloudpickle, farama-notifications, numpy, typing-extensions
Required-by: stable_baselines3


and also:

pip install gymnasium

Requirement already satisfied: gymnasium in
/home/<removed>/anaconda3/lib/python3.12/site-packages (1.2.0)
Requirement already satisfied: numpy>=1.21.0 in
/home/<removed>/anaconda3/lib/python3.12/site-packages (from gymnasium) (2.2.6)
Requirement already satisfied: cloudpickle>=1.2.0 in
/home/<removed>/anaconda3/lib/python3.12/site-packages (from gymnasium) (3.0.0)
Requirement already satisfied: typing-extensions>=4.3.0 in /home/<removed>/anaconda3/lib/python3.12/site-packages (from gymnasium) (4.12.2)
Requirement already satisfied: farama-notifications>=0.0.1 in /home/<removed>/anaconda3/lib/python3.12/site-packages (from gymnasium) (0.0.4)'''


and yet the code still can't run because

ModuleNotFoundError: No module named 'gymnasium'


I re installed gymnasium (and pip install "gymnasium[all]") and still nothing. Getting python3 interpreter running in Terminal and executing '''import gymnasium''' there gives no errors.

I'm completely lost at this point. It doesn't seem to make any sense. None of this is in an env, only my machine directly. Does anyone have any ideas? Many thanks in advance for any efforts made.

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