Fix typo in comment

boriel · boriel · commit 4bc1719efe9e · 2020-11-04T00:48:48.000+01:00
diff --git a/api/identityset.py b/api/identityset.py
@@ -18,7 +18,7 @@ def add(self, elem):
         self._elems.add(elem)
 
     def remove(self, elem):
-        """ Removes an element if it exits. Otherwise does nothing.
+        """ Removes an element if it exists. Otherwise does nothing.
         Returns if the element was removed.
         """
         if elem in self._elems:
