subsript_pairs_to_dict.py

import os

with open(os.path.expanduser('~/Downloads/subscript-non-pairs')) as fo:
    text = fo.read()

pairs = text.split('\n\n')

map_sub_nosub = {}
for pair in pairs:
    key, val = pair.split('\n')
    
    new_key = key.split('#', maxsplit=1)[0]
    try:  # breaks when trying to parse end of file
        new_key = eval(new_key)
    except SyntaxError:
        continue
    if isinstance(new_key, tuple):
        new_key = new_key[0]

    new_val = val.split('#', maxsplit=1)[0]
    try:  # breaks when trying to parse end of file
        new_val = eval(new_val)
    except SyntaxError:
        pass
    if isinstance(new_val, tuple):
        new_val = new_val[0]
    iota = '\u0399'
    iota = eval(repr(iota))
    new_val += iota

    map_sub_nosub[new_key] = new_val

Uses file: https://gist.github.com/kylepjohnson/2eb8693e4948a255e2949d0258634670