--- a/src/pyams_utils/i18n.py	Wed Jun 12 20:06:45 2019 +0200
+++ b/src/pyams_utils/i18n.py	Fri Jun 14 12:41:06 2019 +0200
@@ -10,12 +10,15 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
+"""I18n module used to get browser language from request"""
+
 __docformat__ = 'restructuredtext'
 
 import locale
 
 
 def normalize_lang(lang):
+    """Normalize input languages string"""
     lang = lang.strip().lower()
     lang = lang.replace('_', '-')
     lang = lang.replace(' ', '')
@@ -36,17 +39,17 @@
 
     accepts = []
     for index, lang in enumerate(accept_langs):
-        l = lang.split(';', 2)
+        lang_item = lang.split(';', 2)
 
         # If not supplied, quality defaults to 1...
         quality = 1.0
 
-        if len(l) == 2:
-            q = l[1]
-            if q.startswith('q='):
-                q = q.split('=', 2)[1]
+        if len(lang_item) == 2:
+            qual = lang_item[1]
+            if qual.startswith('q='):
+                qual = qual.split('=', 2)[1]
                 try:
-                    quality = float(q)
+                    quality = float(qual)
                 except ValueError:
                     # malformed quality value, skip it.
                     continue
@@ -58,7 +61,7 @@
             # defined, and items with quality defined as 1.
             quality = 1.9 - (0.001 * index)
 
-        accepts.append((quality, l[0]))
+        accepts.append((quality, lang_item[0]))
 
     # Filter langs with q=0, which means
     # unwanted lang according to the spec
@@ -68,7 +71,7 @@
     accepts.sort()
     accepts.reverse()
 
-    return [lang for qual, lang in accepts][0] if accepts else None
+    return [lang for _, lang in accepts][0] if accepts else None
 
 
 def set_locales(config):