你的错误在于这一句:
b = CustomBusinessDay(holidays) CustomBusinessDay这个类里面的holidays参数是一个关键字参数,不是一个位置参数,所以你进行实例化类的时候应该这样写
b = CustomBusinessDay(holidays=holidays)
这个类的部分帮助文件如下
help(CustomBusinessDay)
Help on class CustomBusinessDay in module pandas.tseries.offsets:
class CustomBusinessDay(_CustomMixin, BusinessDay)
| CustomBusinessDay(n=1, normalize=False, weekmask='Mon Tue Wed Thu Fri', holidays=None, calendar=None, offset=datetime.timedelta(0))
|
| DateOffset subclass representing possibly n custom business days,
| excluding holidays.