Guard sys.modules against import time side effects using ``ProxyF…

…actory``.
zopefoundation · Aug 10, 2011 · fff85e8 · fff85e8
1 parent e3eb6db
commit fff85e8
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diff --git a/CHANGES.txt b/CHANGES.txt
@@ -1,6 +1,11 @@
 Changelog
 =========
 
+In next release ...
+
+- Guard ``sys.modules`` (mapped to the builtin variable "modules")
+  against import-time side effects using ``ProxyFactory``.
+
 2.1 (2011-07-28)
 ~~~~~~~~~~~~~~~~
 

diff --git a/src/z3c/pt/pagetemplate.py b/src/z3c/pt/pagetemplate.py
@@ -2,6 +2,7 @@
 import sys
 
 from zope import i18n
+from zope.security.proxy import ProxyFactory
 
 from chameleon.i18n import fast_translate
 from chameleon.zpt import template
@@ -37,7 +38,7 @@ def __len__(self):
     def __repr__(self):
         return "{...} (%d entries)" % len(self)
 
-sys_modules = OpaqueDict(sys.modules)
+sys_modules = ProxyFactory(OpaqueDict(sys.modules))
 
 
 class DummyRegistry(object):