1# test builtin issubclass
2
3class A:
4    pass
5
6print(issubclass(A, A))
7print(issubclass(A, (A,)))
8
9try:
10    issubclass(A, 1)
11except TypeError:
12    print('TypeError')
13
14try:
15    issubclass('a', 1)
16except TypeError:
17    print('TypeError')
18