Create text to integer and integer to text mappings

text-to-integer-and-integer-to-text-mappings-lamba.txt

create_text_lookup_tables = lambda text: ({c: i for i, c in enumerate(set(text))}, dict(enumerate(set(text))))

vocab_to_int, int_to_vocab = create_text_lookup_tables(['this','is','my','test'])

print(vocab_to_int)
#{'is': 0, 'my': 1, 'this': 2, 'test': 3}

print(int_to_vocab)
#{0: 'is', 1: 'my', 2: 'this', 3: 'test'}