Please ping me so that I get an email.
You’re mixing non-portable builds in python site packages and the bpy.so in the build folder. Need to pick one. Try running python -c "import bpy" in a folder other than the bin. I added a point in the troubleshooting section: https://wiki.blender.org/wiki/Building_Blender/Other/BlenderAsPyModule#Troubleshooting