Try these steps:

1. Activate your virtual environment and verify the installation:

source .venv/bin/activate
pip list | grep openai-agents

If the package isn't listed, install it explicitly:

pip install openai-agents

2. Check the exact import statement you're using. The module might have a different import path than expected. Try:

from openai import OpenAI
# Or possibly
from openai.agents import ...

3. Your settings.json has a placeholder pythonX.X - make sure you've replaced this with your actual Python version (e.g., python3.10).

4. The .env file setup looks correct, but verify it's in the root directory of your project.

5. Try running your code directly from the terminal with the activated venv rather than through the IDE to isolate whether it's an IDE configuration issue.

6. If you're still having issues, check if the package has specific installation requirements:

pip show openai-agents

Could you share the exact import statement you're using and the full error message? That would help pinpoint the exact issue.