cls.retrieve_cryptoportfolio()
cls.get_cryptoportfolio()
liquidities = cls.liquidities.get(liquidity)
- return liquidities[cls.last_date.get()].copy()
+ if liquidities is not None and cls.last_date.get() in liquidities:
+ return liquidities[cls.last_date.get()].copy()
@classmethod
def get_cryptoportfolio(cls, refetch=False):