How to generate positional arguments for another function from tkinter entry
You could do something like this:
It separates the concern of obtaining the data, and the responsibility of storing it. When you have more data fields to gather and store, only get_data will require updating.
def get_data(): food_ = food.get() transport_ = transport.get() insurance_ = insurance.get() installments_ = installments.get() others_ = others.get() return food_, transport_, insurance_, installments_, others_def adddata(): data = get_data() backend2.adddata(*data)