Update funcWithSetsAndDict.rst

barbarer · barbarer · commit 46913913f204 · 2025-05-02T10:05:23.000+12:00
fixed some wording
diff --git a/_sources/functions/funcWithSetsAndDict.rst b/_sources/functions/funcWithSetsAndDict.rst
@@ -353,7 +353,7 @@ Sorting Sets
 Dictionaries
 ============================
 
-A dictionary stores a value for a key.
+A dictionary stores a value for a key. The keys must be immutable and unique.
 
 .. fillintheblank:: funct_dict_num_t
 
