Overcoming SSL Certificate Errors with Python Requests

Feb 3, 2024 ยท 2 min read

Has this ever happened to you? You're trying to call an API in your Python application using the handy Requests module, but you keep getting annoying SSL certificate errors. Don't worry, you're not alone!

Dealing with SSL certificates can be a pain, but with a few tweaks to the Requests module, you can get past those errors and back to coding. Here are some tips:

Verify the Certificate

Many certificate errors happen because the certificate is self-signed or isn't valid. First, check if the certificate itself is valid by viewing it in your browser. If it checks out, you can tell Requests to skip verifying the certificate:

requests.get("https://api.example.com", verify=False)

This isn't best practice though, so only use it for testing.

Provide Your Own Certificate

If you need verification for security, provide your own certificate to validate against:

import certifi
requests.get("https://api.example.com", cert=certifi.where())

The certifi package makes this easy.

Update Certificates

Sometimes certificates expire or change. Update your certificates store to make sure you have the latest:

pip install certifi --upgrade

Running this periodically can prevent frustrating errors down the line.

I hope these tips help you deal with pesky certificate issues in Python Requests. Let me know in the comments if you have any other tricks! Overcoming small snags like this is all part of the programming journey.

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