1"""
2@file
3@brief An class which iterates on any set.
4"""
5
6
7class IterException (Exception):
8
9 """
10 custom exception
11 """
12 pass
13
14
15class NotAllowedOperation(Exception):
16
17 """
18 custom exception
19 """
20 pass
21
22
23class SchemaException(Exception):
24
25 """
26 custom exception
27 """
28 pass