Imports name this capability’s declared dependencies, which fune builds next to it in your project; each one links to its page.
from .money_currency_digits_data import CURRENCY_DIGITS ← this capability’s own data, compiled from data/currency-digits.json into the same file by fune build
def currency_digits(currency: str) -> int:
"""Decimal places in a currency's minor unit, per ISO 4217.
Dividing by 100 is wrong for yen, won, dinar and a few dozen others, so
anything moving between minor and major units asks here.
"""
for row in CURRENCY_DIGITS:
if row.code == currency:
return row.digits
raise ValueError('no ISO 4217 minor unit for currency "%s"' % (currency,))