You might want to check this project: https://pybee.org/
I've never used it but it shows promising. BTW, I'm a diabetic myself and I would be very thankful if you could share your application. I'm currently using 2 Android apps: StickBuddy offers a system to keep track of both where you pinch your fingers and where you inject insulin thus avoiding injecting or pinching repeatedly in the same locations. Insulator is a quick and dirty insuline intake calculator. They are both great but I'd like to have them in a single app that would immediately calculate the insuline needed according to the reading I just enter. StickBuddy has a lot of other interesting goodies; It also helps me keep track of my carbohydrate intake. Both apps are free. -- https://mail.python.org/mailman/listinfo/python-list