[IgorPartola]

The way I understand it is that you either have a pool of interpreters per app or per set of apps. In the second case, life is easy: you can have a simple system that allocates interpreters to apps on demand. In the first case, you have to have a more complex solution. Perhaps the process manage (in this case apache) could implement such a system, but thus far it has not.

[papsosouid]

There's no need for sets of interpreters at all, that's what I am saying. Python being worse at this than PHP doesn't mean PHP is good at it. Look at go for example, there's one app server, running as many apps as you want.