Add openai key path

[regmibijay]

• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.

Currently llm.OpenAI only accepts api_key where as openai module provides additional function of passing api_key_path which ensures api_key is read from this file.

This might be beneficial, if you are using PandasAI together with native openai workflows because of option of defining openai_key_file parameter once and both libraries using this path.

Summary by CodeRabbit

• New Feature: Introduced an optional parameter api_key_path to the OpenAI class in pandasai/llm/openai.py. This allows users to provide a path to their OpenAI API key file, offering an alternative to directly using the api_token.
• Test: Added a new test case test_type_with_key_path in tests/llms/test_openai.py to ensure that when api_key_path is provided, the type attribute of the OpenAI instance is correctly set to "openai".

[coderabbitai]

Walkthrough

The changes introduce an optional parameter api_key_path to the OpenAI class, allowing users to provide a path to the API key file. The logic has been updated to handle both direct api_token and api_key_path. A new test case has been added to ensure the functionality works as expected.

Changes

File	Summary
pandasai/llm/openai.py	Introduced api_key_path as an optional parameter in OpenAI class. Updated logic to handle both api_token and api_key_path. Exception handling for missing parameters.
tests/llms/test_openai.py	Added a new test case test_type_with_key_path to validate the new api_key_path functionality.

🐇💻

In the land of code, where logic intertwines,

A rabbit hops, leaving traces of lines.

With each hop, a change is made,

A new path for keys, beautifully laid.

Tests are written, to keep us on track,

Ensuring our code, has no crack.

So let's celebrate this change, so neat,

With a carrot cake, that's oh-so sweet! 🥕🍰

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Review Status

Actionable comments generated: 2

Commits

Files that changed from the base of the PR and between 0892944 and 6a07fdd commits.

Files selected for processing (2)

• pandasai/llm/openai.py (2 hunks)
• tests/llms/test_openai.py (1 hunks)

Additional comments (Suppressed): 2

pandasai/llm/openai.py (1)

• 49-55: The constructor now accepts an additional optional parameter, api_key_path. Ensure that all calls to this constructor throughout the codebase have been updated to match the new signature.

tests/llms/test_openai.py (1)

• 31-33: Ensure that the proxy settings are correctly applied. The current test only creates an instance of OpenAI but does not verify if the proxy settings are used when making requests. Consider adding assertions to check this.

[gventuri]

@regmibijay thanks a lot for the change, merging :)