there has only been one "right" way to import Expat for a long time now;

use it

lib/python/Shared/DC/xml/ppml.py

@@ -750,7 +750,7 @@ def test1():
     print z, '\012'
 
 def test2():
-    import xml.parsers.pyexpat
+    import xml.parsers.expat
     c=C()
     c.foo=1
     c.bar=2
@@ -778,7 +778,7 @@ def test2():
     file=''
     F=xmlPickler()
     F.binary=0
-    p=xml.parsers.pyexpat.ParserCreate()
+    p=xml.parsers.expat.ParserCreate()
     p.CharacterDataHandler=F.handle_data
     p.StartElementHandler=F.unknown_starttag
     p.EndElementHandler=F.unknown_endtag
@@ -786,13 +786,13 @@ def test2():
     print r, '\012'
 
 def test3():
-    import xml.parsers.pyexpat
+    import xml.parsers.expat
     data=open('Data.xml').read()
     file=open('out','w'+'b')
     F=xmlPickler()
     F.file=file
     F.binary=1
-    p=xml.parsers.pyexpat.ParserCreate()
+    p=xml.parsers.expat.ParserCreate()
     p.CharacterDataHandler=F.handle_data
     p.StartElementHandler=F.unknown_starttag
     p.EndElementHandler=F.unknown_endtag

lib/python/TAL/XMLParser.py

@@ -15,8 +15,14 @@
 Generic expat-based XML parser base class.
 """
 
+import xml.parsers.expat
+
 import zLOG
 
+
+XMLParseError = xml.parsers.expat.ExpatError
+
+
 class XMLParser:
 
     ordered_attributes = 0
@@ -63,15 +69,7 @@ class XMLParser:
                              "Can't set expat handler %s" % name)
 
     def createParser(self, encoding=None):
-        global XMLParseError
-        try:
-            from Products.ParsedXML.Expat import pyexpat
-            XMLParseError = pyexpat.ExpatError
-            return pyexpat.ParserCreate(encoding, ' ')
-        except ImportError:
-            from xml.parsers import expat
-            XMLParseError = expat.ExpatError
-            return expat.ParserCreate(encoding, ' ')
+        return xml.parsers.expat.ParserCreate(encoding, ' ')
 
     def parseFile(self, filename):
         self.parseStream(open(filename))

lib/python/TAL/tests/utils.py

@@ -10,36 +10,28 @@ if codedir not in sys.path:
     sys.path.append(codedir)
 
 import unittest
+import xml.parsers.expat
 
 
 # Set skipxml to true if an XML parser could not be found.
-pyexpat = None
-skipxml = 0
-try:
-    import pyexpat
-except ImportError:
-    try:
-        # the C extension in PyXML
-        import xml.parsers.pyexpat
-    except ImportError:
-        skipxml = 1
-    else:
-        pyexpat = xml.parsers.pyexpat
+# (But Python always includes one now.)
+skipxml = False
 
 
 # Set oldexpat if the StartDoctypeDeclHandler and XmlDeclHandler are
 # not supported.  The tests need to know whether the events reported
 # by those handlers should be expected, but need to make sure the
 # right thing is returned if they are.
-oldexpat = 0
-if pyexpat is not None:
-    p = pyexpat.ParserCreate()
-    # Can't use hasattr() since pyexpat supports the handler
-    # attributes in a broken way.
-    try:
-        p.StartDoctypeDeclHandler = None
-    except AttributeError:
-        oldexpat = 1
+#
+oldexpat = False
+p = xml.parsers.expat.ParserCreate()
+#
+# Can't use hasattr() since pyexpat supports the handler
+# attributes in a broken way.
+try:
+    p.StartDoctypeDeclHandler = None
+except AttributeError:
+    oldexpat = True
 
 
 def run_suite(suite, outf=None, errf=None):