Why are you trying to hide source?

Either you have sensitive information inside your code (in which case- you're doing it wrong) or you're trying to prevent others from using or mimicking your code (if so you're doing it wrong).

If you have sensitive info, store it in something like Cache::File or a YAML file illegible by others.

If you think you're doing something so incredible and fascinatingly useful- you're much better off choosing a gnu license and attracting interest from your peers.

Security by obscurity often ends up creating slow and dangerous code. See windows, for example. There's much debate about all this, by people who have great arguments, on all sides- of course.

If you must hide source, there are no languages that are better than others. They all have strengths and weaknesses. I'm a low level intermediate in perl- I don't get the feeling you would use perl if you want to hide code.