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> Python requires the presence of an interpreter on the system at run time.

A runtime interpreter does not prevent Perl to do similar things via `use 5.13`

Python has `from future` with similar abilities, it would absolutely be possible to do the same as Perl and Go and fix what needs to be fixed without breaking old code. One could design a `import 3.22` and `from 3.22 import unbroken_for` and achieve the same thing.



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