Python 解析时出现意外的EOF？？？

所以我试图创建一个简单的计算器，我认为这段代码没有任何错误，但当我运行代码时，它说有语法错误：在解析（[字符串]，第1行）时出现意外的EOF，我尝试了一些更改，但我仍然看不到错误，请帮助我

operation = input ("Pick your operation:  +  |  -  |  *  |  /   ")

    if operation == '+' :
        no1 = int(input ("Pick a number"))
        no2 = int(input ("Pick another number"))
        answer = no1 + no2
        print ( "Answer:", no1 , "+" , no2 , "=", answer)

    elif operation == '-':
        no1 = int(input ("Pick a number"))
        no2 = int(input ("Pick another number"))
        answer = no1 - no2
        print ( "Answer:", no1 , "-" , no2 , "=" , answer)

    elif operation == '*':
        no1 = int(input ("Pick a number"))
        no2 = int(input ("Pick another number"))
        answer = no1 * no2
        print ( "Answer:", no1 , "*" , no2 , "=", answer)

    elif operation == '/':
        no1 = int(input ("Pick a number"))
        no2 = int(input ("Pick another number"))
        answer = no1 / no2
        print ( "Answer:", no1 , "/" , no2 , "=", answer)

    else:
        print ("Please check your given options of operations.")

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您的行在Python2和Python3中都有效，但仅在Python3中才有意义

版本之间的输入行为发生了变化

在Python 2中，您必须使用

raw\u输入

：

operation = raw_input("Pick your operation:  +  |  -  |  *  |  /   ")

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有关详细信息，请阅读和上的文档。

对于python版本<3.0，您需要使用

raw\u input

。您可能需要检查Python的哪个版本，2或3？可能的副本