[CalendarServer-changes] [12390] twext/trunk/twext/python/types.py

[source_changes at macosforge.org]

Revision: 12390
          http://trac.calendarserver.org//changeset/12390
Author:   wsanchez at apple.com
Date:     2014-01-17 15:34:52 -0800 (Fri, 17 Jan 2014)
Log Message:
-----------
More doc

Modified Paths:
--------------
    twext/trunk/twext/python/types.py

Modified: twext/trunk/twext/python/types.py
===================================================================
--- twext/trunk/twext/python/types.py	2014-01-17 23:28:30 UTC (rev 12389)
+++ twext/trunk/twext/python/types.py	2014-01-17 23:34:52 UTC (rev 12390)
@@ -30,6 +30,10 @@
     entries, which means that when the mapping changes, the view reflects these
     changes.
 
+    Note that for an ummutable mapping, one would have to prevent modifications
+    to the underlying mapping.  Note also that mutable values remain mutable
+    when accessed via a proxy.
+
     Backport of Python 3's L{types.MappingProxyType
     <http://docs.python.org/dev/library/types.html#types.MappingProxyType>}.
     """
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