⬅︎ Back to Be careful with using dict() to create a copy
But if it's the same object (after a dict comprehension spin), then it risky that it's mutable and gets changed by something that you didn't expect. That's functionally different so it can't really be compared performance-wise.
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But if it's the same object (after a dict comprehension spin), then it risky that it's mutable and gets changed by something that you didn't expect. That's functionally different so it can't really be compared performance-wise.