Below is a summary of what could help resolve the SSL certificate verification issue in your local Python environment:

Explanation

The error you're encountering is an APIConnectionError that indicates a problem establishing a secure connection due to a certificate verification failure. Specifically, the error message:

ConnectError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1020)

suggests that Python is not accepting the certificates provided by your operating system or network setup. While curl might be using the proper system certificate store, your Python environment might not be.

Suggested Steps

1. Ensure Your CA Certificates Are Up-to-Date
   Make sure your system’s certificate store is current. You've already run the Install Certificates.command script, but it's worth confirming your OS and Python installations are updated.

2. Use the Certifi Package in Python
   Python's certifi package provides an up-to-date bundle of CA certificates. You can explicitly direct Python to use the certifi certificate bundle. For example:

   PYTHONCopied
   import openai
   import certifi
   import os
   
   # Option 1: Set an environment variable; this may work for some HTTP libraries
   os.environ['SSL_CERT_FILE'] = certifi.where()
   
   # Option 2: If your code allows configuring the underlying HTTP client,
   # ensure it points to certifi.where(). This depends on the internal implementation.
   response = openai.ChatCompletion.create(
       model="gpt-3.5-turbo",
       messages=[{"role": "user", "content": "Hello"}],
       request_timeout=30  # Optionally adjust timeout
   )
   print(response)

3. Check for Proxy or Corporate Network Settings
   Although you mentioned not using a VPN, if you're on a corporate or otherwise managed network, there might be an intercepting proxy with its own certificate. In such cases, you might need to add the proxy’s certificate to your trusted bundle or adjust your proxy settings.

4. Review Firewall and Network Settings
   Ensure that no firewall or antivirus software is interfering with Python’s outgoing SSL connections.

Summary

The issue likely isn’t with your API key or the code itself but with the SSL certificate handling in your local Python environment. Using the certifi package to ensure that Python relies on an up-to-date CA bundle is a common solution, as is verifying that there are no proxy or firewall restrictions interfering with the connection.

If these steps do not resolve the issue, please review your network and system configurations, and consider reaching out to network or system administrators for further assistance, as persistent certificate errors often stem from environment-specific configurations.

Hope this helps!