Lint conformity

patacrep/latex/__init__.py

@@ -22,6 +22,7 @@ BABEL_LANGUAGES = OrderedDict((
 ))
 
 def lang2babel(lang):
+    """Return the language used by babel, corresponding to the language code"""
     try:
         return BABEL_LANGUAGES[lang]
     except KeyError:

patacrep/songs/__init__.py

@@ -131,6 +131,7 @@ class Song:
         self.titles = []
         self.data = {}
         self.cached = None
+        self.lang = None
         self._parse(config)
 
         # Post processing of data