@xnor I'm sure it's implementation-dependent, but I think I recall seeing something that said they're consistent in practice, at least for some particular version.
Grr... I'm positive I've seen something about this very topic, but I can't find it now. It's not in any of the "What's New" documents for Python 3.3, 3.4, or 3.5.
A lot of the Julia features that could be (ab)used for golfing have been deprecated in 0.4. For example, in 0.3.11, the last release in the 0.3 line, one could do int("1") which would return the integer 1. The int function has been deprecated in 0.4 in favor of the constructor Int(), which doesn't accept a string argument. So now one has to do parse(Int,"1") rather than int("1"). :(
What's worse is that you used to be able to do int(["1","12","44"]) to get the array [1, 12, 44]. But now you need to do map(i->parse(Int,i),["1","12","44"]).