The API is described in the file `etreepublic.pxd`_, which is directly
c-importable by extension modules implemented in Pyrex_ or Cython_.
-.. _`etreepublic.pxd`: https://github.com/lxml/lxml/blob/master/src/lxml/etreepublic.pxd
+.. _`etreepublic.pxd`: https://github.com/lxml/lxml/blob/master/src/lxml/include/etreepublic.pxd
.. _Cython: http://cython.org
.. _Pyrex: http://www.cosc.canterbury.ac.nz/~greg/python/Pyrex/