I have gotten the latest version of Blender (from Thomas' PPA), but it no longer works with Animation Nodes (any version of AN, 1.5 or older).
I get the error like I do not have numpy installed, but I do have Python Numpy installed and Python 3 Numpy. (I had this problem the first time I tried activating with older AN, but I have fixed it and have Python3 Numpy (and all the rest of Python3).
Getting out some of my older versions of Blender it works as well, like the 2.77 pre-release test build. It is only with the current version (Hash:22a2853, Date: 2016-03-18) that it doesn't work.
I downloaded the latest development build and it works as well. I think it's just this official build where it doesn't work.
Anyone have any suggestions? Thanks.