fix: Bug with x.y style dictionary keys

attributedict/collections.py

@@ -223,6 +223,30 @@ def __getattr__(self, key):
             return self.__getitem__(key)
 
         except Exception as error:
+            for existing_key in self.__dict__:
+                if existing_key.startswith(key + '.'):
+                    class _DottedKey(object):
+                        def __init__(self, target, prefix):
+                            self.target = target
+                            self.prefix = prefix
+
+                        def __getattr__(self, child_key):
+                            target = self.__dict__['target']
+                            prefix = self.__dict__['prefix']
+                            child_full_key = '{0}.{1}'.format(prefix, child_key)
+
+                            try:
+                                return target.__getitem__(child_full_key)
+
+                            except Exception as child_error:
+                                for existing in target.__dict__:
+                                    if existing.startswith(child_full_key + '.'):
+                                        return _DottedKey(target, child_full_key)
+
+                                raise AttributeError(child_error)
+
+                    return _DottedKey(self, key)
+
             raise AttributeError(error)
 
     def __setattr__(self, key, value):