[Cryptography-dev] on how (not) to chain certs with openssl + pyopenssl

I wanted to use pyOpenSSL to verify a certificate chain in a TLS Certificate Handshake message, and in the process stumbled upon a _disturbing_ amount of misinformation online about how to do this, both using openSSL and with pyOpenSSL. This isn't about a bug in pyOpenSSL, but the combination of a

[Cryptography-dev] v1.4: _openssl has no Cryptography_STATIC_CALLBACKS

Hello, I imagine this may have a trivial explanation, or perhaps indicate some quirk on my machine, but it looks as though some desired functionality isn’t available on my machine with version 1.4. I wanted to share this in case it indicates some wider issue of interest, and helps me learn a l