from .Ex import Expression

class ComplexExpression(Expression):
    def __init__(self,op):
        pass
        # if op is None :
        #     raise ArithmeticError(" no a valid Operator")

from .Ex import Expression

class ComplexExpression(Expression):
    def __init__(self,op):
        pass
        # if op is None :
        #     raise ArithmeticError(" no a valid Operator")

# if op is None : #     raise ArithmeticError(" no a valid Operator")