pylint + simplify path

src/rougail/error.py

@@ -1,14 +1,18 @@
-# -*- coding: utf-8 -*-
+"""Standard error classes
+"""
 class ConfigError(Exception):
-    pass
+    """Standard error for templating
+    """
 
 
 class FileNotFound(ConfigError):
-    pass
+    """Template file is not found
+    """
 
 
 class TemplateError(ConfigError):
-    pass
+    """Templating generate an error
+    """
 
 
 class TemplateDisabled(TemplateError):
@@ -29,7 +33,3 @@ class DictConsistencyError(Exception):
     def __init__(self, msg, errno):
         super().__init__(msg)
         self.errno = errno
-
-
-class LoaderError(Exception):
-    pass