ipython: automatically echo result of assignment s

问题:

This question already has an answer here:

• IPython magic print variables on assignment 1 answer

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

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;
>> 

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

回答1:

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.