What do you think about having a separate environment with it's own parsers (Python, Ruby) and different versions of them within a Linux distro. I'm sick of having to stick with distro's versions of these dependencies (eg.: Red Hat's old versions of PHP, Python, Ruby)
If you do that, how do you do? Do you use some tool like RVM for Ruby? Do you deploy using some package format (RPM, DEB, etc?). What issues do you encounter?
I may see some issues, but I never tested this approach myself to check those.