I have just put the latest version of the above up on github https://github.com/zzz2002/Certbot_TLSAgen_Hook

Anybody with time on their hand,wold yo mind taking a look and letting me know what wrong with it/ what doesn't work/what could be done better....

Happy Easter to those who celebrate it this weekend, to those who don't have a good & safe weekend, enjoy yourselves.

JohnA