A library and a cli tool to help assemble a modular dumbbell inventory

Python 3.7+

$ python -i dumbbell.py
>>> d = Dumbbell(grip=1.5, plates=[0.75, 1, 2.5, 5])

This creates a dumbbell object with fixed weights for grip and plates.
grip represents the weight of the dumbbell's grip.
plates is a list of plates weights, it's assumed that 2 plates are available of each of them.

>>> d = Dumbbell.calc_exact(min_weight=1.5, max_weight=20, max_delta=1.5) 

This creates a dumbbell with automatically inferred grip and disk weights.
min_weight represents the minimum possible weight (no plates attached, only grip)
max_weight represents the maximum possible weight (all plates attached)
max_delta stands for maximum step allowed between adjacent configurations

>>> d.configurations()
[1.5, 3.0, 3.5, 5.0, 6.5, 8.0, 8.5, 10.0, 11.5, 13.0, 13.5, 15.0, 16.5, 18.0, 18.5, 20.0]

This returns a sorted list of all possible weight configurations for this dumbbell.

>>> d.max_delta()
1.5

This returns a maximum weight difference between any two configurations adjacent in the list.

More features are going to be implemented real soon...