[Cryptography-dev] Download and save certificate chain as single file

[Mikael Stålhammar]

Hi. In a web browser it is possible to export a certificate chain as a single (pem/crt) file on disk. I wonder if the same is possible using Python and pyOpenSSL? I've played around with the connection.get_peer_cert_chain() method, which returns a list of X509 objects. Not sure how to process those properly and have them saved as a cert chain in a single valid cert file, that later can be passed in as a "verify" param when calling "requests.post(url, verify=<cert file>...)". Does anyone know and can share a code snippet? Thanks!

/Mikael
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