Message312490
Right, they shouldn't be just aliases, but Constant subclasses with __new__ which return Constant and __instancecheck__ which checks the type of the value. And the Constant class should have writable properties n and s. All these operations should emit a deprecation warning at runtime. Even this doesn't preserve perfect compatibility. issubclass(type(node), Num) will not work, and compile(Num('123')) will raise en exception in the Num constructor instead of compile(). |
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2018-02-21 11:08:43 | serhiy.storchaka | set | recipients:
+ serhiy.storchaka, gvanrossum, brett.cannon, ncoghlan, vstinner, benjamin.peterson, yselivanov |
2018-02-21 11:08:43 | serhiy.storchaka | set | messageid: <1519211323.09.0.467229070634.issue32892@psf.upfronthosting.co.za> |
2018-02-21 11:08:43 | serhiy.storchaka | link | issue32892 messages |
2018-02-21 11:08:43 | serhiy.storchaka | create | |
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