| 1912 | def __hash__(self): |
| 1913 | return 0 |
| 1914 | class Y: |
| 1915 | flag = False |
| 1916 | def __hash__(self): |
| 1917 | return 0 |
| 1918 | def __eq__(self, other): |
| 1919 | if not self.flag: |
| 1920 | self.flag = True |
| 1921 | s.add(X()) |
| 1922 | return self is other |
| 1923 | |
| 1924 | a = X() |
| 1925 | s = set() |
no outgoing calls