1# ticket: 488
2
3"""
4>>> test()
5"""
6def test():
7    x = ...
8    assert x is Ellipsis
9
10    d = {}
11    d[...] = 1
12    assert d[...] == 1
13    del d[...]
14    assert ... not in d
15
16    d[..., ...] = 1
17    assert d[..., ...] == 1
18    assert d[..., Ellipsis] == 1
19    assert (Ellipsis, Ellipsis) in d
20    del d[..., ...]
21    assert (Ellipsis, Ellipsis) not in d
22
23