def parse_money_amount(self, string, currency, maximum=D_MAX):
group_symbol = self.number_symbols['group']
decimal_symbol = self.number_symbols['decimal']
try:
decimal = Decimal(
string.replace(group_symbol, '').replace(decimal_symbol, '.'))
except (InvalidOperation, ValueError):
raise InvalidNumber(string)
if group_symbol in string:
proper = self.format_decimal(decimal, decimal_quantization=False)
if string != proper and string.rstrip('0') != (proper +
decimal_symbol):
# Irregular number format (e.g. `10.00` in German)
try:
decimal_alt = Decimal(
string.replace(decimal_symbol,
'').replace(group_symbol, '.'))
except (InvalidOperation, ValueError):
raise AmbiguousNumber(string, [proper])
else:
proper_alt = self.format_decimal(
decimal_alt, decimal_quantization=False)
raise AmbiguousNumber(string, [proper, proper_alt])
if maximum is not None and decimal > maximum:
raise InvalidNumber(string)
money = Money(decimal, currency).round_down()
if money.amount != decimal:
# The input amount exceeds maximum precision (e.g. $0.001).
raise InvalidNumber(string)
return money
def parse_decimal_or_400(self, s, maximum=D_MAX):
try:
r = parse_decimal(s, locale=self)
except (InvalidOperation, NumberFormatError, ValueError):
raise InvalidNumber(s)
if r.quantize(D_CENT) != r:
raise InvalidNumber(s)
if maximum is not None and r > maximum:
raise InvalidNumber(s)
return r
def parse_decimal_or_400(s, *a):
try:
return parse_decimal(s, *a, locale=loc)
except (InvalidOperation, NumberFormatError, ValueError):
raise InvalidNumber(s)
def read_decimal_or_400(s):
try:
return Decimal(s)
except (InvalidOperation, ValueError):
raise InvalidNumber(s)