w2n2w

Convert words to numbers and back again.
Compatible with Python 3.6 and up.

Why is this a thing?

There was one repo called word2number by Akshay Nagpal which converted words to numbers. There was another repo called num2word by MUKESHSIHAG which converted numbers to words.
To my knowledge there wasn't one that did both (also word2number appears un-maintained).
So I forked and re-wrote word2number and here we are.

What does it do?

Converts number words like "forty three" to integers/floats.

import w2n2w
print(w2n2w.word_to_num('forty three'))
> 43
print(w2n2w.word_to_num('twenty-two point nine one'))
> 22.91
print(w2n2w.word_to_num(('one hundred and twenty three million'
                         ' four hundred and fifty six thousand'
                         ' seven hundred and eighty nine')))
> 123456789
print(w2n2w.word_to_num('negative twelve'))
> -12
print(w2n2w.word_to_num('12 thousand and thirty 8'))
> 12038
print(w2n2w.word_to_num('seventy first'))
> 71

It can also convert numbers into words

import w2n2w
from pprint import pprint
print(w2n2w.num_to_word(1234))
> 'one thousand two hundred and thirty four'
# use pprint here to make long line more readable
pprint(w2n2w.num_to_word(123456789))
> ('one hundred and twenty three million four hundred and fifty six thousand '
>  'seven hundred and eighty nine')
print(w2n2w.num_to_word(1.52))
> 'one point five two'
print(w2n2w.num_to_word(-0.999))
> 'negative zero point nine nine nine'
print(w2n2w.num_to_word(0))
> 'zero'

In theory this library can handle any real number (positive or negative) but for numbers greater than or equal to one undecillion (10^36) you will start to face issues, as these numbers are represented in terms of the highest order of magnitude this library knows.
So 10^36 is represented as 10^33 * 1000 or 'one thousand decillion'.

Things to bear in mind

Some examples may produce unexpected behaviour.

import w2n2w
print(w2n2w.word_to_num('one two three'))
> 6
print(w2n2w.word_to_num('thousandth'), w2n2w.word_to_num('one thousandth'))
> 1000, 0.001
print(w2n2w.word_to_num('third'), w2n2w.word_to_num('one third'))
> 3, 0.3333333333333
print(w2n2w.word_to_num('forty seventh'), w2n2w.word_to_num('forty sevenths'))
> 47, 5.7142857142857135