diff --git a/weboob/tools/application/results.py b/weboob/tools/application/results.py
index c1873a31..9c1970a4 100644
--- a/weboob/tools/application/results.py
+++ b/weboob/tools/application/results.py
@@ -25,29 +25,34 @@ __all__ = ['ResultsCondition', 'ResultsConditionError']
 
 
 class Condition(object):
-   def  __init__(self, left, op, right):
-       self.left = left  # Field of the object to test
-       self.op = op
-       self.right = right
+    def __init__(self, left, op, right):
+        self.left = left  # Field of the object to test
+        self.op = op
+        self.right = right
 
 
 def is_egal(left, right):
     return left == right
 
+
 def is_notegal(left, right):
     return left != right
 
+
 def is_sup(left, right):
     return left < right
 
+
 def is_inf(left, right):
     return left > right
 
+
 def is_in(left, right):
     return left in right
 
 functions = {'!=': is_notegal, '=': is_egal, '>': is_sup, '<': is_inf, '|': is_in}
 
+
 class ResultsCondition(IResultsCondition):
     condition_str = None
 
@@ -66,14 +71,13 @@ class ResultsCondition(IResultsCondition):
                         operator = op
                         break
                 if operator is None:
-                    raise ResultsConditionError(u'Could not find = or != operator in sub-expression "%s"' % _and)
+                    raise ResultsConditionError(u'Could not find a valid operator in sub-expression "%s"' % _and)
                 l, r = _and.split(operator)
                 and_list.append(Condition(l, operator, r))
             or_list.append(and_list)
         self.condition = or_list
         self.condition_str = condition_str
 
-
     def is_valid(self, obj):
         d = dict(obj.iter_fields())
         # We evaluate all member of a list at each iteration.