Using Look Up Tables in Python

Since we are not given any further information about what ranges should be associated with which values, I assume you will transfer my answer to your own problem.

Look-up-Tables are called dictionary in python. They are indicated by curly brackets.

Easy example:

myDict = {1: [1, 2, 3, 4, 5],
          2: [2, 3, 4, 5, 6],
          3: [3, 4, 5, 6, 7]}

Here you create a dictionary with three entries: 1, 2, 3. Each of these entries has a range associated with it. In the example it is of logic range(i, i+5).

You inquire your “Look-Up-Table” just like a list:

print(myDict[2])
>>> [2, 3, 4, 5, 6]

(Note how [2] is not index #2, but actually the value 2 you were looking for)

Often you do not want to create a dictionary by hand, but rather want to construct it automatically. You can e.g. combine two lists of the same length to a dictionary, by using dict with zip:

indices = range(15, 76) # your values from 15 to 75
i_ranges = [range(i, i+5) for i in indices] # this constructs your ranges
myDict = dict(zip(indices, i_ranges)) # zip together the lists and make a dict from it
print(myDict[20])
>>> [20, 21, 22, 23, 24]

By the way, you are not restricted to integers and lists. You can also go like:

myFruits = {'apples': 20, 'cherries': 50, 'bananas': 23}
print(myFruits['cherries'])
>>> 50