From 3d5b4614095fd0b9de37ab3a636e01681ca256b2 Mon Sep 17 00:00:00 2001
From: Alex Root Junior <jroot.junior@gmail.com>
Date: Sat, 30 Jun 2018 17:00:12 +0300
Subject: [PATCH] Raise error when locale is not compiled.

---
 aiogram/contrib/middlewares/i18n.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/aiogram/contrib/middlewares/i18n.py b/aiogram/contrib/middlewares/i18n.py
index 3b60e070..18730cc7 100644
--- a/aiogram/contrib/middlewares/i18n.py
+++ b/aiogram/contrib/middlewares/i18n.py
@@ -57,6 +57,8 @@ class I18nMiddleware(BaseMiddleware):
             if os.path.exists(mo_path):
                 with open(mo_path, 'rb') as fp:
                     translations[name] = gettext.GNUTranslations(fp)
+            elif os.path.exists(mo_path[:-2] + 'po'):
+                raise RuntimeError(f"Found locale '{name} but this language is not compiled!")
 
         return translations