from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class Hange(db.Model):
date = Column(DateTime, default=datetime.now)
person = ...
...
course = Column(String) # default=None cтоит по-умолчанию
fee_cur = Column(String)
fee = Column(String)
fee_percent = Column(String)
def __init__():