fix lists usages

i18n/tests/resources/translations/foo.en.yml

@@ -7,3 +7,25 @@ en:
     one: You have a new mail.
     few: You only have %{count} mails.
     many: You have %{count} new mails.
+  months:
+    - January
+    - Februrary
+    - March
+    - April
+    - May
+    - June
+    - July
+    - August
+    - September
+    - October
+    - November
+    - December
+  welcome:
+    - Hi %{user}
+    - Welcome to %{user}
+  welcome2:
+    - one: A new user just joined!
+      many: Some new users just came!
+    - one: Hello new user!
+      few: We may need more pylons soon
+      many: Too many new users, we need more pylons!

i18n/tests/translation_tests.py

@@ -131,3 +131,10 @@ def test_skip_locale_root_data_nested_json_dict__other_locale(self):
         config.set("locale", "en")
         resource_loader.init_json_loader()
         self.assertEqual(t('COMMON.EXECUTE', locale="pl"), 'Wykonaj')
+
+    def test_basic_list(self):
+        self.assertEqual(len(t('foo.months')), 12)
+
+    def test_formatted_list(self):
+        self.assertEqual(t('foo.welcome', user="someone")[0], "Hi someone")
+        self.assertEqual(t('foo.welcome2', count=2)[1], "We may need more pylons soon")

i18n/translator.py

@@ -39,6 +39,15 @@ def t(key, **kwargs):
 def translate(key, **kwargs):
     locale = kwargs.pop('locale', config.get('locale'))
     translation = translations.get(key, locale=locale)
+    if isinstance(translation, list):
+        # if we can apply plural/formats to the items, let's try
+        if all(isinstance(data, (str, dict)) for data in translation):
+            # if needed, we should format every item in the list
+            if 'count' in kwargs:
+                translation = [pluralize(key, data, kwargs['count']) for data in translation]
+            # items may be non-plural dictionnaries, which we cannot format
+            return [TranslationFormatter(data).format(**kwargs) if isinstance(data, str) else data for data in translation]
+        return translation
     if 'count' in kwargs:
         translation = pluralize(key, translation, kwargs['count'])
     return TranslationFormatter(translation).format(**kwargs)