[Pyrex] Pyrex fails to find class from cimported module

[Stefan Behnel]

Hi,

I noticed that Pyrex fails to compile this:

   cimport etreepublic as cetree
   ...
   cdef class ElementClassLookup(cetree._ElementClassLookup):
      ...

The error message (when hitting the 'class' line) is:
	'cetree.pxd' not found

That's definitely correct, but not quite what is intended, I guess. The file
etreepublic.pxd exists, BTW, and is otherwise correctly cimported.

Stefan