where_expr.py 文件源码

def BoolOp(op, values):
    if len(values) != 2:
        raise ValueError("Can only support two comparisons")

    left, right = values
    if op is operator.and_:
        return left.align(right, join='inner')[0]
    elif op is operator.or_:
        return left.align(right, join='outer')[0]
    else:
        raise ValueError("Unknown operator")