How do I fix SSL error in Python?

Joseph 105 Published: 10/03/2024

How do I fix SSL error in Python?

I'm glad you asked! Fixing SSL errors in Python can be a bit tricky, but don't worry, I'm here to help.

SSL (Secure Sockets Layer) is a protocol used for secure communication over the internet. In Python, you might encounter SSL errors when making HTTP requests or connecting to a server using HTTPS. Here are some common SSL errors and their fixes:

ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: This error occurs when the SSL/TLS certificate presented by the server cannot be verified due to missing or corrupted certificates.

Solution:

You can either ignore the certificate verification by setting verify=False while making the request:

import requests

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

Or, you can install the correct root certificate authorities (CAs) in your system or use a trusted certificate store.

ssl.SSLError: [SSL: WRONG_HOST_KEY] wrong host key: This error occurs when the server's SSL/TLS certificate does not match the expected host name.

Solution:

Make sure that the SSL/TLS certificate is correctly issued for the expected host name and has not expired. You can also specify the expected host name using the server_hostname parameter while making the request:

import requests

response = requests.get('https://example.com', server_hostname='example.com')

ssl.SSLError: [SSL: SSLV2_FAILED] sslv2 failed: This error occurs when the client and server do not support the same SSL/TLS protocol version.

Solution:

Check that both the client and server are using compatible SSL/TLS versions. You can specify the desired SSL/TLS version using the ssl_version parameter while making the request:

import requests

response = requests.get('https://example.com', ssl_version=ssl.PROTOCOL_TLSv1_2)

ssl.SSLError: [SSL: BAD_RECORD_MACRO] bad record mac: This error occurs when there is a corruption in the SSL/TLS record.

Solution:

Check for any corrupted data or network issues that might be causing the error. You can try retrying the request after some time to see if the issue resolves itself.

In addition to these specific solutions, here are some general tips to help you troubleshoot SSL errors in Python:

Make sure that your system's date and time are correct, as incorrect dates can cause certificate verification failures. Check your system's CA store (e.g., Mozilla's root certificates) for any issues or updates. Verify that your Python version is compatible with the required SSL/TLS protocol versions. Try using a different SSL/TLS library or module (e.g., pyOpenSSL instead of ssl) to see if it resolves the issue.

I hope this helps you fix those pesky SSL errors in Python!

Python SSL certificate path

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