gh-99951: Warn if there is an OpenSSL major version mismatch #100641
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While it is a rare edge case well beyond the average use case, there could be situation where there is an OpenSSL version mismatch between the version python was compiled against, and the version currently loaded. Because OpenSSL states that major releases can break compatibility with previous versions and checks are cheap, there seems to be no harm if python warns when it happens.
tl;dr: This PR warns users when importing the
ssl
module when the OpenSSL major version mismatch between the version python was compiled against, and the one it is using.