ipython：自动回显赋值语句的结果？ [英] ipython: automatically echo result of assignment statement?

问题描述

有没有办法让iPython自动回显赋值语句的结果？

Is there a way to make iPython automatically echo the result of an assignment statement?

例如，在MATLAB中，结束没有分号的赋值语句会打印赋值的结果，并且在语句末尾加一个分号会抑制任何输出。 / p>

For example, in MATLAB, ending an assignment statement without a semicolon prints the result of the assignment, and putting a semicolon at the end of the statement suppresses any output.

>> b=1+2

b =

     3

>> b=1+2;
>> 

我希望能够在iPython中做类似的事情。但是，如果我想查看分配结果，目前我必须使用两个单独的语句：

I want to be able to do something similar in iPython. However, currently I have to use two separate statements if I want to see the assignment result:

In [32]: b=1+2

In [33]: b
Out[33]: 3

推荐答案

赋值纯粹是Python中的一个语句，所以你必须编译代码，遍历AST，找到赋值，然后打印变量的<$ c运行后$ c> repr（）。

Assignment is purely a statement in Python, so you'd have to compile the code, walk the AST, find the assignment, and then print the variable's repr() after running it.

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