Python Requests SSLError: How Can I Fix This SSL Certificate Verification Error?

Python Requests Throwing SSLError: Understanding and Resolving the Issue

When working with Python Requests, encountering the "SSLError" exception can be frustrating. This error is typically indicative of an issue with SSL certificate verification.

Cause of the Error:

SSL (Secure Sockets Layer) is a cryptographic protocol that establishes secure connections between a client and a server. When Requests encounters an SSL error, it means that the SSL certificate presented by the server either cannot be validated by Requests or is untrusted.

Resolve the Issue:

1. Verify=False (Quick Fix):

To bypass certificate verification and work around the error, you can temporarily set the verify parameter to False. However, this is strongly discouraged as it exposes your application to security risks.

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

2. Provide a Trusted Certificate:

Instead of disabling verification, it is best practice to provide Requests with a trusted certificate. This can be done by setting the verify parameter to the path of a trusted certificate authority (CA) bundle file.

requests.get('https://example.com', verify='/path/to/ca_bundle.pem')

3. Verify against Requests' Trusted CA Bundle:

If you do not have access to a CA bundle file, you can rely on Requests' own trusted CA bundle. This is stored in the Certifi library and can be accessed by setting the verify parameter to True.

requests.get('https://example.com', verify=True)

Remember:

• Using verify=False is a security risk and should be avoided for production software.
• Provide a trusted certificate for optimal security and compliance.
• If the SSL error persists, it could indicate a server-side issue rather than a problem with Requests.

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