Allow subclassing of TemplateDict

DT_String.py

@@ -82,7 +82,7 @@
 # attributions are listed in the accompanying credits file.
 # 
 ##############################################################################
-"$Id: DT_String.py,v 1.46 2001/06/21 17:45:12 shane Exp $"
+"$Id: DT_String.py,v 1.47 2001/09/04 13:46:43 evan Exp $"
 
 from string import split, strip
 import thread,re,exceptions,os
@@ -486,7 +486,9 @@ def __call__(self,client=None,mapping={},**kw):
 
         pushed=None
         try:
-            if mapping.__class__ is TemplateDict: pushed=0
+            # Support Python 1.5.2, but work better in 2.1
+            if (mapping.__class__ is TemplateDict or
+                isinstance(mapping, TemplateDict)): pushed=0
         except: pass
 
         globals=self.globals

DT_Util.py

@@ -82,8 +82,8 @@
 # attributions are listed in the accompanying credits file.
 # 
 ##############################################################################
-'''$Id: DT_Util.py,v 1.82 2001/07/05 12:19:40 andreas Exp $''' 
-__version__='$Revision: 1.82 $'[11:-2]
+'''$Id: DT_Util.py,v 1.83 2001/09/04 13:46:43 evan Exp $''' 
+__version__='$Revision: 1.83 $'[11:-2]
 
 import re, os
 from html_quote import html_quote # for import by other modules, dont remove!
@@ -145,6 +145,7 @@ def __init__(self, f):
 _marker = []  # Create a new marker object.
 
 def careful_getattr(md, inst, name, default=_marker):
+
     get = md.guarded_getattr
     if get is None:
         get = getattr
@@ -156,6 +157,7 @@ def careful_getattr(md, inst, name, default=_marker):
         return default
 
 def careful_hasattr(md, inst, name):
+
     get = md.guarded_getattr
     if get is None:
         get = getattr
@@ -172,7 +174,8 @@ def careful_hasattr(md, inst, name):
 def namespace(self, **kw):
     """Create a tuple consisting of a single instance whose attributes are
     provided as keyword arguments."""
-    if getattr(self, '__class__', None) != TemplateDict:
+    if not (getattr(self, '__class__', None) == TemplateDict or
+            isinstance(self, TemplateDict)):
         raise TypeError,'''A call was made to DT_Util.namespace() with an
         incorrect "self" argument.  It could be caused by a product which
         is not yet compatible with this version of Zope.  The traceback