Fix error with __getattr__ triggering recursion limit error

pyPRMS/dimensions/Dimensions.py

@@ -50,6 +50,9 @@ def __getattr__(self, name: str) -> Any:
         """
 
         # print('ATTR: {}'.format(name))
+        # https://nedbatchelder.com/blog/201010/surprising_getattr_recursion.html
+        if name == "__setstate__":
+            raise AttributeError(name)
         return getattr(self.__dimensions, name)
 
     def __getitem__(self, item: str) -> Dimension:

pyPRMS/parameters/Parameters.py

@@ -73,6 +73,9 @@ def __getattr__(self, name: str):
 
         # Undefined attributes will look up the given parameter
         # return self.get(item)
+        # https://nedbatchelder.com/blog/201010/surprising_getattr_recursion.html
+        if name == "__setstate__":
+            raise AttributeError(name)
         return getattr(self.__parameters, name)
 
     def __getitem__(self, item):

tests/func/test_dimensions.py

@@ -100,3 +100,15 @@ def test_get_missing_dimension(self, dims_obj):
 
         with pytest.raises(ValueError):
             dims_obj.get('somedim')
+
+    def test_dunder_getitem(self, dims_obj):
+        """Test the __getitem__ method"""
+
+        with pytest.raises(KeyError):
+            dims_obj['somedim']
+
+    def test_dunder_getattr(self, dims_obj):
+        """Test the __getattr__ method"""
+
+        with pytest.raises(AttributeError):
+            dims_obj.somedim