Message349477
+0 This proposal may be worth re-considering. I've seen the problem arise in practice on multiple occasions. I suspect that it will continue to give people trouble.
Right now, a bool is-a int that 1) only has two singleton instances equal to zero and one, 2) has a different repr, and 3) has the & | and ^ operations redefined to return instances of bool.
I think we could also override the ~ operation. That would be a Liskov violation, making bools slightly less substitutable for ints, but it does so in a way that is intuitive and likely to match what a user intends when inverting a bool. |
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Date |
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2019-08-12 15:59:37 | rhettinger | set | recipients:
+ rhettinger, tim.peters, mark.dickinson, tomerv |
2019-08-12 15:59:37 | rhettinger | set | messageid: <1565625577.55.0.825866064001.issue37831@roundup.psfhosted.org> |
2019-08-12 15:59:37 | rhettinger | link | issue37831 messages |
2019-08-12 15:59:37 | rhettinger | create | |
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