yup, agreed, and if word.endswith('ing') looks much better than if word[-3] == 'i' and word[-2] == 'n' and word[-1] == 'g' clearly the authors of that a

yup, agreed, and if word.endswith('ing') looks much better than if word[-3] == 'i' and word[-2] == 'n' and word[-1] == 'g' clearly the authors of that article weren't proficient in the C standard library :)