Why does Python throw ModuleNotFoundError for the 'openai' module despite installation?

It sounds like you might be using a different Python interpreter than the one where you installed the openai package. Here are some steps to troubleshoot and resolve the issue:

1. Verify Python Versions

Check which Python is invoked by your command:

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which python
python --version

If you have both Python 2 and Python 3 installed, you might need to use:

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python3 --version

and run your script with:

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python3 openai-test.py

2. Verify Package Installation

Confirm that the package is installed for the interpreter you’re using. For Python 3, run:

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pip3 list | grep openai

If you installed openai with a pip command linked to Python 2, the module won’t be available. You can reinstall for Python 3 with:

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pip3 install openai

3. Check Virtual Environment

If you're using a virtual environment, make sure it’s activated:

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source path/to/venv/bin/activate

Then try running your script again within that environment.

4. Check sys.path

You can add these lines at the beginning of your openai-test.py file to see where Python is looking for modules:

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import sys
print(sys.executable)
print(sys.path)

This will help you ensure that the interpreter is checking the right locations where the openai package is installed.

Following these steps should help resolve the ModuleNotFoundError.