From 8bc74489614407a4b3c318ef60bd8b6b8fcd6cbb Mon Sep 17 00:00:00 2001
From: Baudouin Raoult <baudouin.raoult@ecmwf.int>
Date: Fri, 26 Apr 2024 10:26:15 +0100
Subject: [PATCH] better error message

---
 anemoi/utils/config.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/anemoi/utils/config.py b/anemoi/utils/config.py
index 8c85aaa..7871a63 100644
--- a/anemoi/utils/config.py
+++ b/anemoi/utils/config.py
@@ -19,7 +19,17 @@
 
 
 class DotDict(dict):
-    """A dictionary that allows access to its keys as attributes"""
+    """A dictionary that allows access to its keys as attributes.
+
+    >>> d = DotDict({"a": 1, "b": {"c": 2}})
+    >>> d.a
+    1
+    >>> d.b.c
+    2
+    >>> d.b = 3
+    >>> d.b
+    3
+    """
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)