def ParseBeancountOptionSymbol(string):
match = re.match(r'[A-Z]+', string)
if not match:
raise ValueError("Invalid Beancount option symbol: {}".format(
repr(string)))
symbol = match.group(0)
rest = string[len(symbol):]
expiration = datetime.datetime.strptime(rest[:6], "%y%m%d").date()
side = rest[6]
strike = Decimal(rest[7:])
return options.Option(symbol, expiration, strike, side)
def _O(symbol, ymd, strike_str, side):
return options.Option(symbol, datetime.date(*ymd), Decimal(strike_str), side)