alt Hacker NewsI read the article as saying it ignores all upper-bounds, and 4.0 is just an example. I could be wrong though - it seems ambiguous to me.
But if we accept that it currently ignores any upper-bounds checks greater than v3, that's interesting. Does that imply that once Python 4 is available, uv will slow down due to needing to actually run those checks?
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VorpalWay • yesterday at 10:24 PM
Are there any plans to actually make a 4.0 ever? I remember hearing a few years ago that after the transition to 3.0, the core devs kind of didn't want to repeat that mess ever again.
That said, even if it does happen, I highly doubt that is the main part of the speed up compared to pip.
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That would deliver a blow to the integrity of the rest of that section because those sorts of upper bound constraints immediately reducible to “true” cannot cause backtracking of any kind.