Permission denied on dl.open() with ipython but not with python

Question

My initial goal is to open a dll file on Cygwin using ctypes. However I found some issues with it. I dug up to sys.dl which returns an unk

Answer 1

Two ideas:

1) in the next cell, type %pdb, and then interactively "print self._name" to see what it is.

2) Use a full path to cdll.LoadLibrary("foo.dll") to see if that works.

Once you know what the issue is, then you can decide whose bug it is, and report it (could be a ctypes issue, but probably ipython)