From 83ce033d6413b44bc30d52043b138b449b2db3c2 Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Mon, 25 Sep 2017 14:48:05 +0200
Subject: o Making EeVal hashable.

---
 src/ee/__init__.py | 3 +++
 test/test_EeVal.py | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/src/ee/__init__.py b/src/ee/__init__.py
index 1eb79d0..d3885c3 100644
--- a/src/ee/__init__.py
+++ b/src/ee/__init__.py
@@ -59,6 +59,9 @@ class EeVal(object):
   def unit(self):
     return self._unit
 
+  def __hash__(self):
+    return hash((self.__float__(), self._unit))
+
   def __eq__(self, other):
     return ((self.__float__(), self._unit) == (other.__float__(), other._unit))
 
diff --git a/test/test_EeVal.py b/test/test_EeVal.py
index c4254fb..b96e089 100644
--- a/test/test_EeVal.py
+++ b/test/test_EeVal.py
@@ -7,3 +7,10 @@ def test_ordering():
     assert n100 > p100
     assert p100 < n100
     assert [p100, n100, u1] == sorted([p100, u1, n100])
+
+def test_hash():
+    p100 = EeVal('100 p')
+    n100 = EeVal('100 n')
+    u1 = EeVal('1u')
+
+    assert 3 == len(set([p100, p100, n100, u1]))
-- 
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