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pythonsslopensslruntime-error

SSL error unsafe legacy renegotiation disabled

I am running a Python code where I have to get some data from HTTPSConnectionPool(host='ssd.jpl.nasa.gov', port=443). But each time I try to run the code I get the following error. I am on MAC OS 12.1

raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='ssd.jpl.nasa.gov', port=443): Max retries exceeded with url: /api/horizons.api?format=text&EPHEM_TYPE=OBSERVER&QUANTITIES_[...]_ (Caused by SSLError(SSLError(1, '[SSL: UNSAFE_LEGACY_RENEGOTIATION_DISABLED] unsafe legacy renegotiation disabled (_ssl.c:997)')))

I really don't know how to bypass this issue.

Solution

  • This error comes up when using OpenSSL 3 to connect to a server which does not support it. The solution is to downgrade the cryptography package in python:

    run pip install cryptography==36.0.2 in the used enviroment.

    source: https://github.com/scrapy/scrapy/issues/5491

    EDIT: Refer to Harry Mallon and ahmkara's answer for a fix without downgrading cryptography