I have learned that this is a specific behavior of OS X. I have
submitted a formal bug report to Apple about the problem. It appears
that this is documented by Apple as acceptable:
http://developer.apple.com/documentation/DeveloperTools/Reference/MachOReference/Reference/reference.html#//apple_ref/
Brian Cole wrote:
> That appears to be working correctly at first glance. The argument to
> dlopen is the correct shared library. Unfortunately, either python or
> OS X is lying to me here. If I inspect the python process with OS X's
> Activity Monitor and look at the "Open Files and Ports" tab, it
