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by lmm
1068 days ago
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Why would you ever use T | None otherwise? As far as I can see the only reason to ever use T | None is because you want to write code that does one thing if it's a None and another thing if it's a T. Having it do the other thing if that T happens to be None makes no more sense than having it do the other thing if that T happens to be 5; at best it might work by accident, more likely it will be a subtle bug. |
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