fix crash with Element subtypes using __slots__ by removing freelists from non-final classes

1 files changed, 1 insertions, 5 deletions

diff --git a/src/lxml/lxml.etree.pyx b/src/lxml/lxml.etree.pyx
index 672ebf7a..86040e20 100644
--- a/src/lxml/lxml.etree.pyx
+++ b/src/lxml/lxml.etree.pyx
@@ -517,7 +517,6 @@ cdef _Document _documentFactory(xmlDoc* c_doc, _BaseParser parser):
     return result
 
 
-@cython.freelist(4)
 cdef class DocInfo:
     u"Document information provided by parser and DTD."
     cdef _Document _doc
@@ -616,7 +615,6 @@ cdef class DocInfo:
 
 
 @cython.no_gc_clear
-@cython.freelist(16)
 cdef public class _Element [ type LxmlElementType, object LxmlElement ]:
     u"""Element class.
 
@@ -1695,7 +1693,6 @@ cdef class _Entity(__ContentOnlyElement):
         return u"&%s;" % self.name
 
 
-@cython.freelist(8)
 cdef class QName:
     u"""QName(text_or_uri_or_element, tag=None)
 
@@ -1764,7 +1761,6 @@ cdef class QName:
         return python.PyObject_RichCompare(one, other, op)
 
 
-@cython.freelist(8)
 cdef public class _ElementTree [ type LxmlElementTreeType,
                                  object LxmlElementTree ]:
     cdef _Document _doc
@@ -2233,6 +2229,7 @@ cdef _ElementTree _newElementTree(_Document doc, _Element context_node,
     return result
 
 
+@cython.final
 @cython.freelist(16)
 cdef class _Attrib:
     u"""A dict-like proxy for the ``Element.attrib`` property.
@@ -2885,7 +2882,6 @@ def ProcessingInstruction(target, text=None):
 
 PI = ProcessingInstruction
 
-@cython.freelist(8)
 cdef class CDATA:
     u"""CDATA(data)