# HG changeset patch
# User cmlenz
# Date 1189010417 0
# Node ID 45860b15fafbdd4a7cb7d6cf5f7f1da1d6e12bb5
# Parent  7730086e47d904035f1c583d480b8cc4e68915f8
In `Locale.parse()`, only parse the argument if it's a string, otherwise just return the argument. This assumes that a non-string argument is either a `Locale` instance, or a proxy object pretending to be one. That may not be a safe assumption, but at least it allows you to use proxy objects such as Paste's `StackedObjectProxy` for locales.

diff --git a/babel/core.py b/babel/core.py
--- a/babel/core.py
+++ b/babel/core.py
@@ -206,9 +206,9 @@
                                      requested locale
         :see: `parse_locale`
         """
-        if type(identifier) is cls:
-            return identifier
-        return cls(*parse_locale(identifier, sep=sep))
+        if isinstance(identifier, basestring):
+            return cls(*parse_locale(identifier, sep=sep))
+        return identifier
     parse = classmethod(parse)
 
     def __eq__(self, other):