用Python口头格式化数字
问题内容：
pythonistas如何将数字打印为单词，例如Common Lisp代码的等价物：
[3]> (format t "~r" 1e25)
nine septillion, nine hundred and ninety-nine sextillion, nine hundred and ninety-nine quintillion, seven hundred and seventy-eight quadrillion, one hundred and ninety-six trillion, three hundred and eight billion, three hundred and sixty-one million, two hundred and sixteen thousand
问题答案：
在python核心中没有，但是有3rd
party库num2words
>>> from num2words import num2words
>>> num2words(1e25)
'ten septillion, one billion, seventy-three million, seven hundred and forty-one thousand, eight hundred and twenty-four'
>>> num2words(10000000000000000000000000)
'ten septillion'
（请注意，在您的示例中，1e25并未精确转换为整数）
