Zope2.11+ has a problem as the TALInterpreter expects an ITALExpressionCompiler but instead got passed the ZopeContext (which has such INSIDE IT as _engine)

fix-tal-engine.patch

diff --git a/lib/python/zope/tal/talgenerator.py b/lib/python/zope/tal/talgenerator.py
index cf2c440..9dc37e8 100644
--- a/lib/python/zope/tal/talgenerator.py
+++ b/lib/python/zope/tal/talgenerator.py
@@ -23,12 +23,13 @@ from zope.tal.taldefs import NAME_RE, TAL_VERSION
 from zope.tal.taldefs import I18NError, METALError, TALError
 from zope.tal.taldefs import parseSubstitution
 from zope.tal.translationcontext import TranslationContext, DEFAULT_DOMAIN
+from zope.tal.interfaces import ITALExpressionCompiler
 
 
 _name_rx = re.compile(NAME_RE)
 
-class TALGenerator(object):
 
+class TALGenerator(object):
     inMacroUse = 0
     inMacroDef = 0
     source_file = None
@@ -37,6 +38,14 @@ class TALGenerator(object):
         if not expressionCompiler:
             from zope.tal.dummyengine import DummyEngine
             expressionCompiler = DummyEngine()
+
+        if expressionCompiler and not \
+                ITALExpressionCompiler.providedBy(expressionCompiler):
+            raise TypeError(
+                ('expressionCompiler for %s is NOT an ITALExpressionCompiler.'
+                 'Type is %s') %
+                ((str(self.__class__)), str(type(expressionCompiler))))
+
         self.expressionCompiler = expressionCompiler
         self.CompilerError = expressionCompiler.getCompilerError()
         # This holds the emitted opcodes representing the input
diff --git a/lib/python/zope/tal/talinterpreter.py b/lib/python/zope/tal/talinterpreter.py
index 9e65be5..d725307 100644
--- a/lib/python/zope/tal/talinterpreter.py
+++ b/lib/python/zope/tal/talinterpreter.py
@@ -30,7 +30,6 @@ from zope.tal.taldefs import getProgramVersion, getProgramMode
 from zope.tal.talgenerator import TALGenerator
 from zope.tal.translationcontext import TranslationContext
 
-
 # Avoid constructing this tuple over and over
 I18nMessageTypes = (Message,)
 
@@ -781,7 +780,7 @@ class TALInterpreter(object):
 
     def insertHTMLStructure(self, text, repldict):
         from zope.tal.htmltalparser import HTMLTALParser
-        gen = AltTALGenerator(repldict, self.engine, 0)
+        gen = AltTALGenerator(repldict, self.engine._engine, 0)
         p = HTMLTALParser(gen) # Raises an exception if text is invalid
         p.parseString(text)
         program, macros = p.getCode()
@@ -789,7 +788,7 @@ class TALInterpreter(object):
 
     def insertXMLStructure(self, text, repldict):
         from zope.tal.talparser import TALParser
-        gen = AltTALGenerator(repldict, self.engine, 0)
+        gen = AltTALGenerator(repldict, self.engine._engine, 0)
         p = TALParser(gen)
         gen.enable(0)
         p.parseFragment('<!DOCTYPE foo PUBLIC "foo" "bar"><foo>')