How to understand '_' in these tests?
random832 at fastmail.us
random832 at fastmail.us
Tue Jun 2 00:23:49 EDT 2015
On Tue, Jun 2, 2015, at 00:18, fl wrote:
> Hi,
>
> I just know that '_' is the last result in the Python interpreter. I feel that
> it is like 'ans' in Matlab. When I run the following commands. The result of
> '_' are always '4'.
>
>
> Because I have tried several commands, such as reversed('fred'), xx and rx,
> '4' are always there.
>
> What is your explanation about the following?
The use of _ for the last result is a special feature of the REPL. It
does not work if there is a real variable called _.
Try del _ before trying to print _.
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