The locale Module

Currency Formatting US Dollars Using the locale Module

import locale

locale.setlocale(locale.LC_ALL, '')
Out[2]: 'English_United States.1252'

locale.currency(762559748.49)
Out[3]: '$762559748.49'

locale.currency(762559748.49, grouping=True)
Out[4]: '$762,559,748.49'

Remarks

Python 2 Docs: [https://docs.python.org/2/library/locale.html#locale.currency][1]