TypeError: unsupported operand type(s) for /: 'NoneType' and 'NoneType'

程序员文章站 2022-03-05 12:20:41

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当你使用spark udf时，进行如下操作

@udf(ArrayType(DoubleType()))
def listdivision(alist,blist):
    if (np.array(blist).sum() is None)|(np.array(alist).sum() is None):
        return None
    else:
        result=[]
        label = np.array(blist)==0
        result = np.array(alist)/np.array(blist)
        result[label] = 1
        return result

其核心就是np.array的除法，当array内部存在array([None])时就会造成这样的报错

TypeError: unsupported operand type(s) for /: 'NoneType' and 'NoneType'

所以需要使用np.array(blist).sum() is None进行判断

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