reimplement __hash__ with tuple; closes #1

2019-12-18 19:22:49 -03:00
parent 59818e0500
commit a1d6c125bf
4 changed files with 9 additions and 160 deletions
--- a/11-pythonic-obj/vector2d_v3_prophash.py
+++ b/11-pythonic-obj/vector2d_v3_prophash.py
@@ -81,8 +81,8 @@ Tests of hashing:

    >>> v1 = Vector2d(3, 4)
    >>> v2 = Vector2d(3.1, 4.2)
-    >>> hash(v1), hash(v2)
-    (7, 384307168202284039)
+    >>> hash(v1) != hash(v2)
+    True
    >>> len(set([v1, v2]))
    2

@@ -131,7 +131,7 @@ class Vector2d:

 # BEGIN VECTOR_V3_HASH
    def __hash__(self):
-        return hash(self.x) ^ hash(self.y)
+        return hash((self.x, self.y))
 # END VECTOR_V3_HASH

    def __abs__(self):