adds information attribute to an option

tiramisu/option.py

@@ -53,7 +53,29 @@ def valid_name(name):
 #____________________________________________________________
 #
 
-class Option(BaseType):
+class BaseInformation:
+    informations = {}
+
+    def set_information(self, key, value):
+        """updates the information's attribute
+        (wich is a dictionnary)
+
+        :param key: information's key (ex: "help", "doc"
+        :param value: information's value (ex: "the help string")
+        """
+        self.informations[key] = value
+
+    def get_information(self, key):
+        """retrieves one information's item
+
+        :param key: the item string (ex: "help")
+        """
+        if key in self.informations:
+            return self.informations[key]
+        else:
+            raise ValueError("Information's item not found: {0}".format(key))
+
+class Option(BaseType, BaseInformation):
     """
     Abstract base class for configuration option's.
 
@@ -87,7 +109,6 @@ class Option(BaseType):
             raise NameError("invalid name: {0} for option".format(name))
         self._name = name
         self.doc = doc
-        self.informations = {}
         self._requires = requires
         self._mandatory = mandatory
         self.multi = multi
@@ -195,25 +216,6 @@ class Option(BaseType):
         "accesses the Option's doc"
         return self.doc
 
-    def set_information(self, key, value):
-        """updates the information's attribute
-        (wich is a dictionnary)
-
-        :param key: information's key (ex: "help", "doc"
-        :param value: information's value (ex: "the help string")
-        """
-        self.informations[key] = value
-
-    def get_information(self, key):
-        """retrieves one information's item
-
-        :param key: the item string (ex: "help")
-        """
-        if key in self.informations:
-            return self.informations[key]
-        else:
-            raise ValueError("Information's item not found: {0}".format(key))
-
     def getcallback(self):
         "a callback is only a link, the name of an external hook"
         return self.callback
@@ -398,7 +400,7 @@ class NetmaskOption(Option):
         # by now the validation is nothing but a string, use IPy instead
         return isinstance(value, str)
 
-class OptionDescription(BaseType):
+class OptionDescription(BaseType, BaseInformation):
     """Config's schema (organisation, group) and container of Options"""
     # the group_type is useful for filtering OptionDescriptions in a config
     group_type = groups.default