dummy, underscore and unused local variables

[Steven D'Aprano]

On Tue, 14 Jun 2011 01:55:04 +1000, Chris Angelico wrote:

> On Tue, Jun 14, 2011 at 1:37 AM, Tim Johnson <tim at johnsons-web.com>
> wrote:
>> On a related note: from the python interpreter if I do
>>>>> help(_)
>> I get
>> Help on bool object:
>>
>> class bool(int)
>>  |  bool(x) -> bool
>>  ......
>>  I'd welcome comments on this as well.
> 
> _ is special to IDLE.

Not just IDLE. Also the vanilla Python command line interpreter. In fact, 
you can even find the code that controls it:

help(sys.displayhook)

http://docs.python.org/library/sys.html#sys.displayhook



-- 
Steven