Number printer 🧮 🖨

Outline

Python script converts numbers (integers) into English words.

For example:

2 -> two
900425 -> nine hundred thousand four hundred and twenty five
forty -> Please enter an integer between 0 and 1x10^18 - 1
0 -> zero

Key Learnings:

• Writing out the logic / examples on paper first saves a lot of time and hair-pulling.
• Automated test input numbers (created in for loops) made it easier to identify bugs!
• English groups by ones (6), tens (60), hundreds (600), then thousands (6000), millions (6000000) etc. Thousands and higher orders are quantified by hundreds/tens/or ones. e.g. 304000 = 'three hundred and four thousand'.
• Numbers of length 4 (6000) to length 6 (600000) are all classified as thousands, 7-9 are millions, 10-12 are billions etc.
• Important to consider where the 'and' goes - it is used for hundreds and somethings, as well as anything that has a double digit at the end of it ('90 thousand and 99')

Try it for yourself!

1. Clone this repository on your machine
2. Run in your terminal inside the repo directory: python3 number_printer.py