Thank you that is most helpful about the HOPS software and Python. LIke previous replies I have reservations about using such a fluid language which has a had at least one really big change and over the next 8 years could cause a similar break in support.
As I mentioned AstroImageJ would be my first choice and I have used it a lot on variable stars – hadn’t realised there was quite so much material for exoplanets. I have a lot of reading and cross checking to do. Am I right in presuming that the resulting lightcurve can be uploaded to the exoclock website or should I be thinking about processing via AstroImageJ and then uploading from HOPS software? Or I just need to do more reading!?