norminette

d00/ex03/NULL_not_found.py

@@ -4,19 +4,25 @@ def NULL_not_found(object: any) -> int:
     match object:
         case None:
             print("Nothing:", object, nullType)
-        # using a guard https://docs.python.org/3/reference/compound_stmts.html#guards
-        # (NaN == NaN) = false https://docs.python.org/3.10/reference/expressions.html#value-comparisons "A counter-intuitive implication is that not-a-number values are not equal to themselves"
+
+        # using a guard :
+        # https://docs.python.org/3/reference/compound_stmts.html#guards
+        # (NaN == NaN) = false :
+        # https://docs.python.org/3.10/reference/expressions.html#value-comparisons
+        # "A counter-intuitive implication is that not-a-number values are not
+        #  equal to themselves"
+
         case float() if object != object:
             print("Cheese:", object, nullType)
         # need check before int(), why ?
-        case bool() if object == False :
+        case bool() if object is False:
             print("Fake:", object, nullType)
-        case int() if object == 0 :
+        case int() if object == 0:
             print("Zero:", object, nullType)
-        case str() if object == '' :
+        case str() if object == '':
             print("Empty:", nullType)
         case _:
             print("Type not Found")
             return 1
-    
-    return 0
+
+    return 0