Add __eq__ and __hash__

1 files changed, 8 insertions, 0 deletions

diff --git a/pattern.py b/pattern.py
index a1919b5..7ff95d8 100644
--- a/pattern.py
+++ b/pattern.py
@@ -81,3 +81,11 @@ class Pattern:
     
     def __repr__(self):
         return str(self)
+
+    def __hash__(self):
+        return hash(str(self))
+
+    def __eq__(self, other):
+        if not other.__class__ == Pattern:
+            return False
+        return self.items == other.items and self.invert == other.invert