How will Lion's New Security Model Affect things like Python?

Question

I'm curious to know how the new security model in OS X Lion will affect the future. Specifically, I'm questioning Entitlements and Sandboxing.

This isn't a question of whether or not these are good ideas. Rather, this is a question of best guess of what will happen in the future.

I'm curious about things like Python. My company makes a small Python App for emergency situations with out web-based software. This includes reading and writing to the file system.

Our app has no entitlements, namely because it's just Python code and we don't do any Cocoa wrapping. When the Mac App Store requirements that all apps have to be sandboxed and list their entitlements go into effect, I wonder if Apple will roll out an update to the operating system and say, "this is how we do security from now on and if your application doesn't meet our security model, it won't run because it's not secure."

I have mixed emotions about this. On the one hand, I think it's great for making consumer's machines more secure. Less rogue code and all that rot. On the other hand, it's going to make development a living hell for a lot of developers, methinks.

I also wonder if such an update should come out for Lion if the same update will be released for either Leopard or Snow Leopard. My thought would be not Leopard as it is two generations behind the current OS. Snow Leopard all depends on how long Apple wants to support an older OS.

So now I open it up to Apple developers to speak their minds on this topic and perhaps generate thoughts where previously there were none.