Yes, I had good reason to avoid mentioning python2's print() implementation ;-)
It apparently rounds to even fewer decimal digits than perl5:

$ python2 -c 'print 2 ** 0.5'
1.41421356237

$ perl -le 'print 2 ** 0.5'
1.4142135623731
[download]

At least they've done something about it.
Maybe perl7 will do the same.

Cheers,
Rob