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-rw-r--r--django/utils/functional.py12
-rw-r--r--tests/regressiontests/i18n/tests.py18
2 files changed, 29 insertions, 1 deletions
diff --git a/django/utils/functional.py b/django/utils/functional.py
index cd34809837..574f433fd5 100644
--- a/django/utils/functional.py
+++ b/django/utils/functional.py
@@ -64,6 +64,18 @@ def lazy(func, *resultclasses):
else:
return Promise.__str__(self)
+ def __cmp__(self, rhs):
+ if self._delegate_str:
+ s = str(self.__func(*self.__args, **self.__kw))
+ elif self._delegate_unicode:
+ s = unicode(self.__func(*self.__args, **self.__kw))
+ else:
+ s = self.__func(*self.__args, **self.__kw)
+ if isinstance(rhs, Promise):
+ return -cmp(rhs, s)
+ else:
+ return cmp(s, rhs)
+
def __mod__(self, rhs):
if self._delegate_str:
return str(self) % rhs
diff --git a/tests/regressiontests/i18n/tests.py b/tests/regressiontests/i18n/tests.py
index 278957dad4..8a7d2bee3e 100644
--- a/tests/regressiontests/i18n/tests.py
+++ b/tests/regressiontests/i18n/tests.py
@@ -1,7 +1,9 @@
# coding: utf-8
ur"""
->>> from django.utils.translation import ugettext_lazy, activate, deactivate
+Format string interpolation should work with *_lazy objects.
+
+>>> from django.utils.translation import ugettext_lazy, activate, deactivate, gettext_lazy
>>> s = ugettext_lazy('Add %(name)s')
>>> d = {'name': 'Ringo'}
>>> s % d
@@ -14,4 +16,18 @@ u'Ringo hinzuf\xfcgen'
u'Dodaj Ringo'
>>> deactivate()
+It should be possible to compare *_lazy objects.
+
+>>> s1 = ugettext_lazy('Add %(name)s')
+>>> s == s1
+True
+>>> s2 = gettext_lazy('Add %(name)s')
+>>> s3 = gettext_lazy('Add %(name)s')
+>>> s2 == s3
+True
+>>> s == s2
+True
+>>> s4 = ugettext_lazy('Some other string')
+>>> s == s4
+False
"""