Question about idiomatic use of _ and private stuff.

[Bruno Desthuilliers]

Troy Melhase a écrit :
>> Why do people sometimes use one leading underscore?
> 
> 
> Many folks like to use the single leading underscore to emphasize that
> the attribute isn't part of the normal way to use the class or
> instance.
> 
> It's bad style in my opinion, but I'm probably in the minority.

You are, definitively. While it's not technically part of the language 
syntax, you can practically consider it as such.