1# test [...] of bytes
2
3print(b'123'[0])
4print(b'123'[1])
5print(b'123'[-1])
6
7try:
8    b'123'[1] = 4
9except TypeError:
10    print('TypeError')
11
12try:
13    del b'123'[1]
14except TypeError:
15    print('TypeError')
16