No lazy_* needed here; Add ReallyLazyProxy.__repr__.

One should use lazy_* only if you have a good reason.

This one found by our unit tests!

For example add_message adds the message to the session,
the session needs to be serialized (with json) and well,
LazyProxy is not serializable.

To aid in debugging, gave our ReallyLazyProxy a __repr__.

mediagoblin/edit/views.py

@@ -29,7 +29,7 @@ from mediagoblin.decorators import (require_active_login, active_user_from_url,
      get_media_entry_by_id,
      user_may_alter_collection, get_user_collection)
 from mediagoblin.tools.response import render_to_response, redirect
-from mediagoblin.tools.translate import lazy_pass_to_ugettext as _
+from mediagoblin.tools.translate import pass_to_ugettext as _
 from mediagoblin.tools.text import (
     convert_to_tag_list_of_dicts, media_tags_as_string)
 from mediagoblin.tools.url import slugify

mediagoblin/tools/translate.py

@@ -50,6 +50,13 @@ class ReallyLazyProxy(LazyProxy):
     def value(self):
         return self._func(*self._args, **self._kwargs)
 
+    def __repr__(self):
+        return "<%s for %s(%r, %r)>" % (
+            self.__class__.__name__,
+            self._func,
+            self._args,
+            self._kwargs)
+
 
 def locale_to_lower_upper(locale):
     """