Why does __builtins__ mean different things...

[Terry Reedy]

"James Stroud" <jstroud at mbi.ucla.edu> wrote in message 
news:fket7o$qr7$1 at daisy.noc.ucla.edu...
| But....what the heck? You mean if I drop an s I get predictable behavior
| and if I don't, I get unpredictable behavior?

In 3.0, the __builtin__ module will be renamed 'builtins'.  The internal 
__builtins__ variable most likely will continue to point to it (as it does 
now in main modules).  Its purpose is to aid sandboxing by replacing the 
builtin module.  If you are not doing that, ignore it.