From f14bcb9b6c79f7f071e32a7ef9bba5ce440096bd Mon Sep 17 00:00:00 2001
From: Vincent Vinet <vince.vinet@gmail.com>
Date: Thu, 15 Oct 2009 14:23:57 +0000
Subject: Big commit! Everything to make Tutorial execution work through dbus.

---
(limited to 'tutorius/properties.py')

diff --git a/tutorius/properties.py b/tutorius/properties.py
index abf76e5..b1c6361 100644
--- a/tutorius/properties.py
+++ b/tutorius/properties.py
@@ -95,6 +95,27 @@ class TPropContainer(object):
         """
         return object.__getattribute__(self, "_props").keys()
 
+    # Providing the hash methods necessary to use TPropContainers
+    # in a dictionary, according to their properties
+    def __hash__(self):
+        try:
+            #Return a hash of properties (key, value) sorted by key
+            return hash(tuple(map(tuple,sorted(self._props.items(), cmp=lambda x, y: cmp(x[0], y[0])))))
+        except TypeError:
+            #FIXME For list properties (and maybe others), hashing will fail, fallback to id
+            return id(self)
+
+    def __eq__(self, e2):
+        return self._props.items() == e2._props.items()
+
+    # Adding methods for pickling and unpickling an object with
+    # properties
+    def __getstate__(self):
+       return self._props.copy()
+
+    def __setstate__(self, dict):
+       self._props.update(dict)
+
 class TutoriusProperty(object):
     """
     The base class for all actions' properties. The interface is the following :
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