Making the Zen of Python more useful

[Peter Hansen]

Aloysio Figueiredo wrote:

>>>>import sys
>>>>t,sys.stdout = sys.stdout, file('/dev/null', 'w')
>>>>from this import s
>>>>sys.stdout = t
>>>>s.decode('rot-13')

Aloysio, it's often helpful that sys.__stdout__ preserves a reference
to the original sys.stdout (similarly with sys.__stdin__ and
sys.__stderr__) so you don't have to preserve it manually like
that.

-Peter