Define a range, return all numbers of range that are NOT in csv data

[KiNeMs]

So no I am on to my next part of this.

Please let me know if you would prefer me to create a new thread. But it is a continuation of this project for me.

I am trying to create a dynamic menu system that will produce menu items based on what items are specified in the _number_ranges dictionary. .

# Define Site Ranges Dictionary
_number_ranges = {
    "549StKilda": {
        'start': 61392697000,
        'end': 61392697999,
        'name': "549 StKilda Rd"
    },
    "Mulgrave": {
        'start': 61385849100,
        'end': 61385849199,
        'name': "Mulgrave"
    },
    "Rhodes": {
        'start': 61298169000,
        'end': 61298169999,
        'name': "Rhodes"
    },
    "Not Defined Number": {
        'start': 0,
        'end': 99999999999,
        'name': "NON Number"
    },

def find_available_n():
    for num_range in _number_ranges:
        print(num_range)
        #Ask for Choice
        choose_range = input("Select Range: ")
        return choose_range

I am trying to create a menu system that will provide number options base of the number of ranges I have defined. Currently my code will only produce the first range.

Since I have defined, StKilda Rd, Mulgrave and Rhodes. I would like the find_available_n function to Print the options

print ("""Select Range:
1. for StKilda Rd
2. for Mulgrave
3. for Rhodes
4. for NON Number""")

Then If I add a another range to the define dictionary of ranges _number_ranges i would like that to be added as well.