Inelegant code!

[perfringo]

One idea which might be worth of considering is to use 'x' (create) mode while opening the file. This will raise FileExistsError if file is already existing.

try:
    with open(filename, 'xt') as f:   # t for text mode, b for binary mode
        # do stuff
except FileExistsError:
    # do other stuff       

Also you may consider pepify/prettify the code using variable naming convetions and f-strings (address_file = f'{date_prefix}-torlist.txt')

Beware of .isnumeric expected behaviour as well:

>>> digits = '123'
>>> numerics = '一二三'   # '123'in Kanji
>>> decimals = '1²'
>>> digits.isnumeric()
True
>>> numerics.isnumeric()
True
>>> decimals.isnumeric()
True