Re-enable promotions in isinstance checks #6181
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This pull request reverts python#6114 and python#6142: see python#6180 for rationale. In short, the original fix ended up being more disruptive then anticipated: it's modifying str and unicode semantics, and we should put a little more thought into reasoning about that particular case before moving ahead with any fix here. This should also help unblock the upcoming 0.660 release.
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I'll also reopen #6060 if we decide to go ahead with this PR. |
msullivan
approved these changes
Jan 11, 2019
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This pull request reverts #6114 and #6142: see #6180 for rationale.
In short, the original fix ended up being more disruptive then anticipated: it's modifying str and unicode semantics, and we should put a little more thought into reasoning about that particular case before moving ahead with any fix here.
This should also help unblock the upcoming 0.660 release.