Answered Dec 5 ‘20 by Mark Dominus python
import ssl
context = ssl.SSLContext()
context.load_cert_chain('fullchain.pem', 'privkey.pem')
...
app.run(…, ssl_context=context)
‘fullchain.pem’, ‘privkey.pem’ are created by [LetsEncrypt Certbot
rest - can you add HTTPS functionality to a python flask web server? - Stack Overflow Flask HTTPS
$ flask run --cert fullchain.pem --key privkey.pem
python - Run Flask dev server over HTTPS using CLI - Stack Overflow
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